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  • Tutorials
    • Growing – Basics
      • Feed Schedules
        • Ultimate Cheat Sheet General Hydroponic Trio
        • Cheat Sheet Fox Farms Trio Photos
        • Hydroponic DWC Cheat Sheet
        • P Mix – Anthocyanins Flush Mix for Purple Buds
        • Members Only
          • SOLO CUP GROW & FEED CHART
          • Grow With Me Series- Master Feed & Grow Chart
          • Fox Farms Master Autos Feed Schedule
          • META SOIL PROJECT Feed & Harvest Data – 6 Ways
          • General Hydroponics Coco Master Feed Schedule
          • Athena Blended Converted to General Hydroponics
        • Strain Hunt 2023 Scorecard & Ranks
        • Smoke Report PDF Template – How to Rate & Judge Buds Form
          • Smoke Report Paper Template – How to Rate & Judge Buds Form
      • How to Install a Grow Tent Kit – Complete Guide
        • How to Set Up a Grow Tent: Complete Assembly Checklist
        • How to Set Up Grow-Tent Ventilation, Inline Fans and Carbon Filters
        • How to Hang an LED Grow Light Safely in a Grow Tent
        • Cannabis Grow Light Timer & Light Leak Setup Guide
      • The Best Way to Germinate Cannabis Seeds Proven
      • HOW TO GROW WEED – Seed to Harvest
      • When to Harvest Cannabis
        • How to Inspect Cannabis Trichomes With a Loupe and Phone
      • How to Hang Dry Weed Perfectly
      • How to Trim your Buds
      • Automatic Cure Bin
    • Quick Tips
      • How to Maximize Autoflower Yield: Bigger Plants and Buds
      • How to Germinate Seeds using Rapid Rooters
      • How to Germinate Cannabis Seeds Directly in Soil
      • How to Clone Weed from Cuttings
      • How to Mix Plant Nutrients in the Right Order
      • How to Use pH Up & Down
      • How to Reveg – Turn Flowering to Vegetative
      • Cannabis Balls, Nanners and Herms: What You’re Actually Seeing
      • How to Identify Sex by Cloning
      • How to Top or FIM your Plants
      • When to Flip Your Plants to Bloom
      • Best Tips on Defoliation/Pruning
      • How to SCROG Cannabis: Install and Use a Trellis Net
      • How to Recycle Soil
      • How to Dry Faster and Prepare Dense Buds for Drying
      • Easiest Bulk Harvest/Cure – Bucket Tek
    • Articles
      • How to Ship Hemp Clones Safely and Effectively
      • How to Grow in Used Soil – Graveyard Grow
      • Smoke Report Template – How to Review Bud Quality
      • How to Make Money Smoking – Interview with Smoker
      • YouTube Banned My Channel at 20K Subs
      • How to Choose Which Strain to Grow?
      • How THC Is Absorbed: Smoking, Edibles, Tinctures & Skin
      • Cannabis Tolerance & T-Breaks: How Long Does a Reset Take?
      • At-Home THC Testing: What Potency Testers Can and Can’t Tell You
      • Why Do People Use Cannabis? Reasons, Benefits and Risks
      • What Is CBD? Cannabidiol Uses, Risks & Evidence
      • How to Clean a Grow Tent Between Grows
      • Marijuana Extracts vs. Concentrates
      • TOP 10 Reasons NOT to Grow Hydro
      • All About Cannabinoids
      • THC Delta 8, 9, 10 vs. THC O Acetate
      • Bongs, Pipes vs. Papers
      • Growmie Stories – One Plant, One Closet
      • All About Terpenes
      • Time to Vote for Best Strain
        • Eliminating Strains on the Vote
          • STRAIN HUNT WINNER – Highest THC and Yield
      • How to Grow Lion’s Mane Mushrooms at Home: Beginner Kit Guide
    • Troubleshooting
      • TOP 10 MISTAKES NEW GROWERS MAKE
      • How to Read & Fix Leaves – Nitrogen – Phosphorous – Potassium – Calcium – Magnesium – Sulfur
      • Top 10 Mistakes New Growers Make – Part 2
      • How to Fix Yellow Leaves & Deficiencies
      • How to Use, Calibrate and Store a pH Meter
        • How to Make 3 M KCl Solution for pH Meter Storage
      • How to Calibrate a pH Meter
      • How to Test New Soil’s pH & ppm– Slurry Test
      • How to Measure Current Soil pH and Nutrients
      • The Best Ranges for Runoff pH, ppm & EC
      • How to Prevent Light Burns
      • The Best Way to Feed Cannabis & Weed Plants – The DUNK
      • How to Prevent Larf and Popcorn Buds
      • How to Permanently Remove Fungus Gnats
      • How to Graft Cannabis
      • How to Fix Helmet Head – Stuck Cannabis Seeds
      • How to Remove/Prevent ROOT ROT Pythium
      • Destroy All Hermies/Nanners
    • Bro Science
      • Can you Touch Colas/Pistils? What Happens?
      • Can you Grow a Cracked Marijuana Seed?
    • Setups
      • Grow Tent Setup Checklist: 2×4 vs. 4×4
      • SETUP COMPLETE GUIDE
      • DIY DRIP
        • 2 Plants – 2 x 4 Tent – Emitters
        • 4 Plants – 3 x 3 Tent – Emitters
        • 4 Plants – 4 x 4 Tent – Halos
        • 9 Plants – 5 x 5 Tent – Halos
      • Best Airflow and Setup for Small Grow Tent
        • How Hang AC Infinity CLOUDLINE t4 Inline Fan Carbon Filter
        • AC INFINITY CLOUDLINE Controller 67 69 -App Setup
        • How to Setup and Install CLOUDLINE Controller
        • How to Install Inline Fan – Outside Tent
      • How to Choose LED Grow Lights
        • How to Hang LED Grow Lights – In Tent
        • How to Test your LED Lights
          • Apogee MQ-500 vs Photone – Spider Farmer SF2000 Testing
      • How to Clean a Grow Tent Basic
      • How to Sterilize a Grow Tent – Advanced
    • Hydro
      • Hydro COMPLETE GUIDE
        • THE MASTERCLASS
        • Chlorine and Chloramine in Water for Cannabis Plants
        • Why Start Hydro in Rapid Rooters
        • How to Make Hydroponic DWC Top Off Water
        • How to Make Hydroponic Vegetative Nutrient Juice – DWC Feed Schedule
        • How to Add Juices to Reservoir
        • How to Make Hydroponic Bloom & Flowering Nutrient Juice – DWC Feed Schedule and Recipe
        • When to Flip Your Hydroponic Cannabis Plants
      • How to Setup a RDWC System
      • Hydro vs Soil Series – Grow Journal – RDWC
    • Breeding
      • CBD Project – F* Big Pharma
      • Making Southern Belle – A Joint Breeding Project
  • Reviews
    • Top Picks
      • 2×4 vs. 4×4 Grow Tent Buying Guide
      • Best Cannabis Growing Tools: 10 Essentials That Save Time
      • Six Cannabis Grow Methods Compared: HWGrow Project Setup
      • Best Grow Tent Humidifier
      • Best Grow Tent Dehumidifier: Why Mini Units Fail
      • Best Carbon Filter – AC Infinity vs. Vivosun vs. Generic
      • Best Internal Fan – Genesis vs. 3 Other Generics
      • Best Mason Jar for Curing
      • Best Weed Grinder – Kozo vs. Vivosun vs. 3 Other Generics
      • Best Trichome Magnifier – Jewelers Loupe vs. Digital Microscope
      • Best Hole Puncher for Fabric Pots
      • Best pH Meters – Apera vs. Vivosun vs. 2 Other Generics
    • Equipment
      • Apogee MQ-500 Review: How to Use Sample and Log Modes
      • DIY Push-Button Drip Irrigation for Indoor Plants
      • AC Infinity CLOUDLAB 743D
      • Bluelab TRUNV2 Truncheon
      • Bluelab PENCON TDS EC Mete
      • AC Infinity S4 vs. Vivosun Inline Fan: 4-Inch Test
      • iGrowtek Generic 6 Inch Inline Fan
      • VIVOSUN 32W 950 GPH Air Pump
      • BUBBLEBAGDUDE – Instructions & Review – How to Make Ice Water Hash
      • Spider Farmer G12 Hydroponic Garden Review & Setup (2023 Model)
      • Cheapest Water Chiller for Hydro RDWC
      • Boveda 62 Humidity Packs
      • Rockwool cubes vs Rapid Rooters – Review and Comparison
      • Automatic Bowl Leaf Trimmer
    • LED Lights
      • How to Choose an LED Grow Light for Cannabis
      • Samsung LM301H vs LM301B – LEDs
      • Mars Hydro FC6500 Review: 2023 Test vs. 2026 Model
      • Vivosun VS3000 Review: 2022 PPFD Test vs. Current Specs
      • AC Infinity IONBOARD S44 Review: 2022 Heat Test Revisited
      • Spider Farmer SF2000/SF4000
        • Spider Farmer SF2000 2023 Driver Review: Mean Well vs Spider Farmer
        • Spider Farmer SF2000 Review Based on Harvest
      • Best Budget LED Grow Light 2024 – Medic Grow Fold 800W – Unboxing, Light Test & Best Settings
      • Bloom Plus XP-4000 LED Light
      • ViparSpectra KS3000 Review: What My 2022 Test Actually Showed
      • FAMURS Dimmable TF3000 LED
      • Sunshine Farmre LED Light
      • FloraFlex 700W – Unboxing, Light Test & Best Settings
      • PANDVILLOW 400W Generic LM301B
    • Nutrient Tests
      • Fox Farm’s Happy Frog Potting Soil – Lab Results vs. Home Tests – How to Fix & Balance
      • General Hydroponics Flora Trio vs Fox Farm
      • How HWGrow Tests Nutrients: pH, EC and PPM Protocol
      • Fox Farms Grow Big
      • Fox Farms Big Bloom
      • Fox Farms Tiger Bloom
      • How to Use General Hydroponics Flora Series
      • Rapitest Home Soil Test Kit
  • PROJECTS
    • GROW WITH ME MASTERCLASS
      • Grow With Me Masterclass – Welcome
      • Grow With Me – Day -7 – Preparing Fabric Pots
      • Grow With Me – Day -3 – Germination & Rapid Rooters
      • Grow With Me – Day 0-3 – Transplanting to Fabric Pots
      • Grow With Me – Day 3 – 21 – First Feedings & Juices
      • Grow With Me – Day 21 – 28 – Veg, Topping & LST
      • Grow With Me – Day 29–41 – Blending Juices, Dunks, Responsive Feeding & Reading Leaves, LST
      • Grow With Me – Day 42-49 – Defoliation, Pruning, LST & Flip
      • Grow With Me – Day 49-60 – Early Bloom Cycle – Routine Tasks
      • Grow With Me – Day 61 – 88 – The Mid Bloom Cycle – Bud Support & Even Light
      • Grow With Me – Day 89-End – Pre-Flush – Cutting Nutrients & Chop Prep
      • Grow With Me – Finale – Chop & Dry Room Prep
      • GWM Cloning MASTERCLASS
    • HOW TO BREED MASTERCLASS
      • Define Your Cannabis Breeding Project: Selfing, Crosses and Trait Goals
      • Day 0–10: Root Two Clones for a Cannabis Breeding Project
      • Day 10–24: Establish the Pollen Donor and Seed Receiver
      • How to Mix STS Spray: Validated Formula, SDS and Safety
      • Day 24–30: STS Spray Schedule Before the 12/12 Flip
      • Day 30–42: Manage the Reversed Donor and Know When to Stop STS
      • Day 42–56: Synchronize the Pollen Donor and Seed Receiver
      • Day 56–66: Pollinate Cannabis and Confirm Early Seed Set
      • Day 66+: Harvest, Dry and Store Cannabis Pollen
      • How to Test Cannabis Seed Maturity Before Harvest
      • How to Harvest, Grade, Clean, Dry and Store Cannabis Seeds
    • META SOIL PROJECT
      • FULL EPISODES
        • EPISODE 1 – IN THE BEGINNING – CLONES
        • EPISODE 2 – FIM & DRAINAGE
        • EPISODE 3 – DIE OR LIVE
        • EPISODE 4 – AUTO VS MANUAL FEEDING
        • EPISODE 5 – VEG PHASE REVIEW
        • EPISODE 6 – DEFOLIATION, LST 7 PRUNING
        • EPISODE 7 – FLIP & STRETCH
        • EPISODE 8 – TOPDRESSING & FIXES IN BLOOM
        • EPISODE 9 – AERIAL DEFOLIATION & DEFICIENCIES
        • EPISODE 10 – BUDS STACKING – UGLY IS HERE
        • EPISODE 11 – Leaves Bud Rot Stem Support
        • EPISODE 12 – Macro Close Ups THC/Buds
        • EPISODE 13 – Flushing, Senescence, Pre-Harvest
        • EPISODE 14 – CHOP, WEIGHTS, WET TRIM, HARVEST & CURING
      • Mr. Canucks Grows Gaia Green Mix Breakdown
      • 420 Scene Super Soil Breakdown
      • TPS Nutrients Coco Mix Breakdown
      • Coco for Cannabis Breakdown
      • Great Lakes Water Only Breakdown
      • BuildASoil 3.0 Breakdown
    • How to Grow Weed in a Pringles Can
  • Legality
    • Legal without Card
      • Alaska
      • Arizona
      • California
      • Connecticut
      • Colorado
      • District of D.C.
      • Massachusetts
      • Maine
      • Maryland
      • Michigan
      • Minnesota Cannabis Home Grow Laws
      • Montana
      • New Mexico
      • New York
      • Ohio
      • Oregon
      • Virginia
      • Vermont
    • Legal with Conditions
      • Illegal to Grow States
      • Hawaii – with MM Card
      • Illinois – with MM Card
      • Missouri – with Registration
      • Nevada – 25 Miles from Dispensary
      • Oklahoma – with MM Card
      • Rhode Island – with MM Card
      • South Dakota – Distance
      • Washington – with MM Card
    • Illegal but you thought they were Legal
      • Mississppi – Almost
      • New Jersey – No
    • Complete List of Illegal States
  • About
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Tag: Calibrate

To determine, check, or rectify the graduation of (any instrument giving quantitative measurements). to determine the correct range for a device by observing outcomes.

Close-up of a pH meter probe inside a blue storage cap
Reviews March 31, 2022

How to Use, Calibrate and Store a pH Meter

Last updated: August 2026 Quick answer: A pH meter stays accurate when you keep the ...
Potassium chloride, jar, scale, scoop, and measuring cup
Troubleshooting March 31, 2022

How to Make 3 M KCl Solution for pH Meter Storage

Last updated: August 2026 Quick answer: To make 3 M KCl, use 223.65 grams of ...
pH calibration buffers and probe-care supplies
Troubleshooting December 3, 2021

How to Calibrate Apera, Bluelab and Budget pH Meters

Last updated: August 2026 Quick answer: Calibrate with the buffer values and button sequence listed ...
My Growmies ChatLive community conversation
skruffy85

A full screen option would be cool if possible though for the chat.

sic_wit_itt662

Sup growmies 😎

sic_wit_itt662

Im growing sticky beast ny zamnesia

howweedgrow

drop apic

Open My Growmies Chat

Recent Reviews

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    AC Infinity IONFRAME A7 Review: Best 2×4 Grow Light I’ve Tested?

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Featured Grow

Jul 2026 — White Iverson by Selfie Seeds +2 more Jul 2026 — White Iverson by Selfie Seeds +2 more White Iverson × Selfie Seeds, Pink Strawberry × Selfie Seeds, Purple Berry × Selfie Seeds • Soil • Started Jul 25, 2026 View journal →
  1. howweedgrow on 19 September 2026September 19, 2026

    Looking healthy

  2. howweedgrow on Day 1 for someSeptember 18, 2026

    Shared a GIF.

  3. howweedgrow on Update — 2026-09-17 14:06:33September 17, 2026

    kind of looks a little too dry for my liking

  4. howweedgrow on White Christmas 2025 Jebus Solo Cup BabiesSeptember 17, 2026

    of course you will

  5. Jason on White Christmas 2025 Jebus Solo Cup BabiesSeptember 17, 2026

    Growing the Purple Berry's now, hope I do her justice.

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  • Tutorials
    • Growing – Basics
      • Feed Schedules
        • Ultimate Cheat Sheet General Hydroponic Trio
        • Cheat Sheet Fox Farms Trio Photos
        • Hydroponic DWC Cheat Sheet
        • P Mix – Anthocyanins Flush Mix for Purple Buds
        • Members Only
          • SOLO CUP GROW & FEED CHART
          • Grow With Me Series- Master Feed & Grow Chart
          • Fox Farms Master Autos Feed Schedule
          • META SOIL PROJECT Feed & Harvest Data – 6 Ways
          • General Hydroponics Coco Master Feed Schedule
          • Athena Blended Converted to General Hydroponics
        • Strain Hunt 2023 Scorecard & Ranks
        • Smoke Report PDF Template – How to Rate & Judge Buds Form
          • Smoke Report Paper Template – How to Rate & Judge Buds Form
      • How to Install a Grow Tent Kit – Complete Guide
        • How to Set Up a Grow Tent: Complete Assembly Checklist
        • How to Set Up Grow-Tent Ventilation, Inline Fans and Carbon Filters
        • How to Hang an LED Grow Light Safely in a Grow Tent
        • Cannabis Grow Light Timer & Light Leak Setup Guide
      • The Best Way to Germinate Cannabis Seeds Proven
      • HOW TO GROW WEED – Seed to Harvest
      • When to Harvest Cannabis
        • How to Inspect Cannabis Trichomes With a Loupe and Phone
      • How to Hang Dry Weed Perfectly
      • How to Trim your Buds
      • Automatic Cure Bin
    • Quick Tips
      • How to Maximize Autoflower Yield: Bigger Plants and Buds
      • How to Germinate Seeds using Rapid Rooters
      • How to Germinate Cannabis Seeds Directly in Soil
      • How to Clone Weed from Cuttings
      • How to Mix Plant Nutrients in the Right Order
      • How to Use pH Up & Down
      • How to Reveg – Turn Flowering to Vegetative
      • Cannabis Balls, Nanners and Herms: What You’re Actually Seeing
      • How to Identify Sex by Cloning
      • How to Top or FIM your Plants
      • When to Flip Your Plants to Bloom
      • Best Tips on Defoliation/Pruning
      • How to SCROG Cannabis: Install and Use a Trellis Net
      • How to Recycle Soil
      • How to Dry Faster and Prepare Dense Buds for Drying
      • Easiest Bulk Harvest/Cure – Bucket Tek
    • Articles
      • How to Ship Hemp Clones Safely and Effectively
      • How to Grow in Used Soil – Graveyard Grow
      • Smoke Report Template – How to Review Bud Quality
      • How to Make Money Smoking – Interview with Smoker
      • YouTube Banned My Channel at 20K Subs
      • How to Choose Which Strain to Grow?
      • How THC Is Absorbed: Smoking, Edibles, Tinctures & Skin
      • Cannabis Tolerance & T-Breaks: How Long Does a Reset Take?
      • At-Home THC Testing: What Potency Testers Can and Can’t Tell You
      • Why Do People Use Cannabis? Reasons, Benefits and Risks
      • What Is CBD? Cannabidiol Uses, Risks & Evidence
      • How to Clean a Grow Tent Between Grows
      • Marijuana Extracts vs. Concentrates
      • TOP 10 Reasons NOT to Grow Hydro
      • All About Cannabinoids
      • THC Delta 8, 9, 10 vs. THC O Acetate
      • Bongs, Pipes vs. Papers
      • Growmie Stories – One Plant, One Closet
      • All About Terpenes
      • Time to Vote for Best Strain
        • Eliminating Strains on the Vote
          • STRAIN HUNT WINNER – Highest THC and Yield
      • How to Grow Lion’s Mane Mushrooms at Home: Beginner Kit Guide
    • Troubleshooting
      • TOP 10 MISTAKES NEW GROWERS MAKE
      • How to Read & Fix Leaves – Nitrogen – Phosphorous – Potassium – Calcium – Magnesium – Sulfur
      • Top 10 Mistakes New Growers Make – Part 2
      • How to Fix Yellow Leaves & Deficiencies
      • How to Use, Calibrate and Store a pH Meter
        • How to Make 3 M KCl Solution for pH Meter Storage
      • How to Calibrate a pH Meter
      • How to Test New Soil’s pH & ppm– Slurry Test
      • How to Measure Current Soil pH and Nutrients
      • The Best Ranges for Runoff pH, ppm & EC
      • How to Prevent Light Burns
      • The Best Way to Feed Cannabis & Weed Plants – The DUNK
      • How to Prevent Larf and Popcorn Buds
      • How to Permanently Remove Fungus Gnats
      • How to Graft Cannabis
      • How to Fix Helmet Head – Stuck Cannabis Seeds
      • How to Remove/Prevent ROOT ROT Pythium
      • Destroy All Hermies/Nanners
    • Bro Science
      • Can you Touch Colas/Pistils? What Happens?
      • Can you Grow a Cracked Marijuana Seed?
    • Setups
      • Grow Tent Setup Checklist: 2×4 vs. 4×4
      • SETUP COMPLETE GUIDE
      • DIY DRIP
        • 2 Plants – 2 x 4 Tent – Emitters
        • 4 Plants – 3 x 3 Tent – Emitters
        • 4 Plants – 4 x 4 Tent – Halos
        • 9 Plants – 5 x 5 Tent – Halos
      • Best Airflow and Setup for Small Grow Tent
        • How Hang AC Infinity CLOUDLINE t4 Inline Fan Carbon Filter
        • AC INFINITY CLOUDLINE Controller 67 69 -App Setup
        • How to Setup and Install CLOUDLINE Controller
        • How to Install Inline Fan – Outside Tent
      • How to Choose LED Grow Lights
        • How to Hang LED Grow Lights – In Tent
        • How to Test your LED Lights
          • Apogee MQ-500 vs Photone – Spider Farmer SF2000 Testing
      • How to Clean a Grow Tent Basic
      • How to Sterilize a Grow Tent – Advanced
    • Hydro
      • Hydro COMPLETE GUIDE
        • THE MASTERCLASS
        • Chlorine and Chloramine in Water for Cannabis Plants
        • Why Start Hydro in Rapid Rooters
        • How to Make Hydroponic DWC Top Off Water
        • How to Make Hydroponic Vegetative Nutrient Juice – DWC Feed Schedule
        • How to Add Juices to Reservoir
        • How to Make Hydroponic Bloom & Flowering Nutrient Juice – DWC Feed Schedule and Recipe
        • When to Flip Your Hydroponic Cannabis Plants
      • How to Setup a RDWC System
      • Hydro vs Soil Series – Grow Journal – RDWC
    • Breeding
      • CBD Project – F* Big Pharma
      • Making Southern Belle – A Joint Breeding Project
  • Reviews
    • Top Picks
      • 2×4 vs. 4×4 Grow Tent Buying Guide
      • Best Cannabis Growing Tools: 10 Essentials That Save Time
      • Six Cannabis Grow Methods Compared: HWGrow Project Setup
      • Best Grow Tent Humidifier
      • Best Grow Tent Dehumidifier: Why Mini Units Fail
      • Best Carbon Filter – AC Infinity vs. Vivosun vs. Generic
      • Best Internal Fan – Genesis vs. 3 Other Generics
      • Best Mason Jar for Curing
      • Best Weed Grinder – Kozo vs. Vivosun vs. 3 Other Generics
      • Best Trichome Magnifier – Jewelers Loupe vs. Digital Microscope
      • Best Hole Puncher for Fabric Pots
      • Best pH Meters – Apera vs. Vivosun vs. 2 Other Generics
    • Equipment
      • Apogee MQ-500 Review: How to Use Sample and Log Modes
      • DIY Push-Button Drip Irrigation for Indoor Plants
      • AC Infinity CLOUDLAB 743D
      • Bluelab TRUNV2 Truncheon
      • Bluelab PENCON TDS EC Mete
      • AC Infinity S4 vs. Vivosun Inline Fan: 4-Inch Test
      • iGrowtek Generic 6 Inch Inline Fan
      • VIVOSUN 32W 950 GPH Air Pump
      • BUBBLEBAGDUDE – Instructions & Review – How to Make Ice Water Hash
      • Spider Farmer G12 Hydroponic Garden Review & Setup (2023 Model)
      • Cheapest Water Chiller for Hydro RDWC
      • Boveda 62 Humidity Packs
      • Rockwool cubes vs Rapid Rooters – Review and Comparison
      • Automatic Bowl Leaf Trimmer
    • LED Lights
      • How to Choose an LED Grow Light for Cannabis
      • Samsung LM301H vs LM301B – LEDs
      • Mars Hydro FC6500 Review: 2023 Test vs. 2026 Model
      • Vivosun VS3000 Review: 2022 PPFD Test vs. Current Specs
      • AC Infinity IONBOARD S44 Review: 2022 Heat Test Revisited
      • Spider Farmer SF2000/SF4000
        • Spider Farmer SF2000 2023 Driver Review: Mean Well vs Spider Farmer
        • Spider Farmer SF2000 Review Based on Harvest
      • Best Budget LED Grow Light 2024 – Medic Grow Fold 800W – Unboxing, Light Test & Best Settings
      • Bloom Plus XP-4000 LED Light
      • ViparSpectra KS3000 Review: What My 2022 Test Actually Showed
      • FAMURS Dimmable TF3000 LED
      • Sunshine Farmre LED Light
      • FloraFlex 700W – Unboxing, Light Test & Best Settings
      • PANDVILLOW 400W Generic LM301B
    • Nutrient Tests
      • Fox Farm’s Happy Frog Potting Soil – Lab Results vs. Home Tests – How to Fix & Balance
      • General Hydroponics Flora Trio vs Fox Farm
      • How HWGrow Tests Nutrients: pH, EC and PPM Protocol
      • Fox Farms Grow Big
      • Fox Farms Big Bloom
      • Fox Farms Tiger Bloom
      • How to Use General Hydroponics Flora Series
      • Rapitest Home Soil Test Kit
  • PROJECTS
    • GROW WITH ME MASTERCLASS
      • Grow With Me Masterclass – Welcome
      • Grow With Me – Day -7 – Preparing Fabric Pots
      • Grow With Me – Day -3 – Germination & Rapid Rooters
      • Grow With Me – Day 0-3 – Transplanting to Fabric Pots
      • Grow With Me – Day 3 – 21 – First Feedings & Juices
      • Grow With Me – Day 21 – 28 – Veg, Topping & LST
      • Grow With Me – Day 29–41 – Blending Juices, Dunks, Responsive Feeding & Reading Leaves, LST
      • Grow With Me – Day 42-49 – Defoliation, Pruning, LST & Flip
      • Grow With Me – Day 49-60 – Early Bloom Cycle – Routine Tasks
      • Grow With Me – Day 61 – 88 – The Mid Bloom Cycle – Bud Support & Even Light
      • Grow With Me – Day 89-End – Pre-Flush – Cutting Nutrients & Chop Prep
      • Grow With Me – Finale – Chop & Dry Room Prep
      • GWM Cloning MASTERCLASS
    • HOW TO BREED MASTERCLASS
      • Define Your Cannabis Breeding Project: Selfing, Crosses and Trait Goals
      • Day 0–10: Root Two Clones for a Cannabis Breeding Project
      • Day 10–24: Establish the Pollen Donor and Seed Receiver
      • How to Mix STS Spray: Validated Formula, SDS and Safety
      • Day 24–30: STS Spray Schedule Before the 12/12 Flip
      • Day 30–42: Manage the Reversed Donor and Know When to Stop STS
      • Day 42–56: Synchronize the Pollen Donor and Seed Receiver
      • Day 56–66: Pollinate Cannabis and Confirm Early Seed Set
      • Day 66+: Harvest, Dry and Store Cannabis Pollen
      • How to Test Cannabis Seed Maturity Before Harvest
      • How to Harvest, Grade, Clean, Dry and Store Cannabis Seeds
    • META SOIL PROJECT
      • FULL EPISODES
        • EPISODE 1 – IN THE BEGINNING – CLONES
        • EPISODE 2 – FIM & DRAINAGE
        • EPISODE 3 – DIE OR LIVE
        • EPISODE 4 – AUTO VS MANUAL FEEDING
        • EPISODE 5 – VEG PHASE REVIEW
        • EPISODE 6 – DEFOLIATION, LST 7 PRUNING
        • EPISODE 7 – FLIP & STRETCH
        • EPISODE 8 – TOPDRESSING & FIXES IN BLOOM
        • EPISODE 9 – AERIAL DEFOLIATION & DEFICIENCIES
        • EPISODE 10 – BUDS STACKING – UGLY IS HERE
        • EPISODE 11 – Leaves Bud Rot Stem Support
        • EPISODE 12 – Macro Close Ups THC/Buds
        • EPISODE 13 – Flushing, Senescence, Pre-Harvest
        • EPISODE 14 – CHOP, WEIGHTS, WET TRIM, HARVEST & CURING
      • Mr. Canucks Grows Gaia Green Mix Breakdown
      • 420 Scene Super Soil Breakdown
      • TPS Nutrients Coco Mix Breakdown
      • Coco for Cannabis Breakdown
      • Great Lakes Water Only Breakdown
      • BuildASoil 3.0 Breakdown
    • How to Grow Weed in a Pringles Can
  • Legality
    • Legal without Card
      • Alaska
      • Arizona
      • California
      • Connecticut
      • Colorado
      • District of D.C.
      • Massachusetts
      • Maine
      • Maryland
      • Michigan
      • Minnesota Cannabis Home Grow Laws
      • Montana
      • New Mexico
      • New York
      • Ohio
      • Oregon
      • Virginia
      • Vermont
    • Legal with Conditions
      • Illegal to Grow States
      • Hawaii – with MM Card
      • Illinois – with MM Card
      • Missouri – with Registration
      • Nevada – 25 Miles from Dispensary
      • Oklahoma – with MM Card
      • Rhode Island – with MM Card
      • South Dakota – Distance
      • Washington – with MM Card
    • Illegal but you thought they were Legal
      • Mississppi – Almost
      • New Jersey – No
    • Complete List of Illegal States
  • About
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  • Tutorials
    • Growing – Basics
      • Feed Schedules
        • Ultimate Cheat Sheet General Hydroponic Trio
        • Cheat Sheet Fox Farms Trio Photos
        • Hydroponic DWC Cheat Sheet
        • P Mix – Anthocyanins Flush Mix for Purple Buds
        • Members Only
          • SOLO CUP GROW & FEED CHART
          • Grow With Me Series- Master Feed & Grow Chart
          • Fox Farms Master Autos Feed Schedule
          • META SOIL PROJECT Feed & Harvest Data – 6 Ways
          • General Hydroponics Coco Master Feed Schedule
          • Athena Blended Converted to General Hydroponics
        • Strain Hunt 2023 Scorecard & Ranks
        • Smoke Report PDF Template – How to Rate & Judge Buds Form
          • Smoke Report Paper Template – How to Rate & Judge Buds Form
      • How to Install a Grow Tent Kit – Complete Guide
        • How to Set Up a Grow Tent: Complete Assembly Checklist
        • How to Set Up Grow-Tent Ventilation, Inline Fans and Carbon Filters
        • How to Hang an LED Grow Light Safely in a Grow Tent
        • Cannabis Grow Light Timer & Light Leak Setup Guide
      • The Best Way to Germinate Cannabis Seeds Proven
      • HOW TO GROW WEED – Seed to Harvest
      • When to Harvest Cannabis
        • How to Inspect Cannabis Trichomes With a Loupe and Phone
      • How to Hang Dry Weed Perfectly
      • How to Trim your Buds
      • Automatic Cure Bin
    • Quick Tips
      • How to Maximize Autoflower Yield: Bigger Plants and Buds
      • How to Germinate Seeds using Rapid Rooters
      • How to Germinate Cannabis Seeds Directly in Soil
      • How to Clone Weed from Cuttings
      • How to Mix Plant Nutrients in the Right Order
      • How to Use pH Up & Down
      • How to Reveg – Turn Flowering to Vegetative
      • Cannabis Balls, Nanners and Herms: What You’re Actually Seeing
      • How to Identify Sex by Cloning
      • How to Top or FIM your Plants
      • When to Flip Your Plants to Bloom
      • Best Tips on Defoliation/Pruning
      • How to SCROG Cannabis: Install and Use a Trellis Net
      • How to Recycle Soil
      • How to Dry Faster and Prepare Dense Buds for Drying
      • Easiest Bulk Harvest/Cure – Bucket Tek
    • Articles
      • How to Ship Hemp Clones Safely and Effectively
      • How to Grow in Used Soil – Graveyard Grow
      • Smoke Report Template – How to Review Bud Quality
      • How to Make Money Smoking – Interview with Smoker
      • YouTube Banned My Channel at 20K Subs
      • How to Choose Which Strain to Grow?
      • How THC Is Absorbed: Smoking, Edibles, Tinctures & Skin
      • Cannabis Tolerance & T-Breaks: How Long Does a Reset Take?
      • At-Home THC Testing: What Potency Testers Can and Can’t Tell You
      • Why Do People Use Cannabis? Reasons, Benefits and Risks
      • What Is CBD? Cannabidiol Uses, Risks & Evidence
      • How to Clean a Grow Tent Between Grows
      • Marijuana Extracts vs. Concentrates
      • TOP 10 Reasons NOT to Grow Hydro
      • All About Cannabinoids
      • THC Delta 8, 9, 10 vs. THC O Acetate
      • Bongs, Pipes vs. Papers
      • Growmie Stories – One Plant, One Closet
      • All About Terpenes
      • Time to Vote for Best Strain
        • Eliminating Strains on the Vote
          • STRAIN HUNT WINNER – Highest THC and Yield
      • How to Grow Lion’s Mane Mushrooms at Home: Beginner Kit Guide
    • Troubleshooting
      • TOP 10 MISTAKES NEW GROWERS MAKE
      • How to Read & Fix Leaves – Nitrogen – Phosphorous – Potassium – Calcium – Magnesium – Sulfur
      • Top 10 Mistakes New Growers Make – Part 2
      • How to Fix Yellow Leaves & Deficiencies
      • How to Use, Calibrate and Store a pH Meter
        • How to Make 3 M KCl Solution for pH Meter Storage
      • How to Calibrate a pH Meter
      • How to Test New Soil’s pH & ppm– Slurry Test
      • How to Measure Current Soil pH and Nutrients
      • The Best Ranges for Runoff pH, ppm & EC
      • How to Prevent Light Burns
      • The Best Way to Feed Cannabis & Weed Plants – The DUNK
      • How to Prevent Larf and Popcorn Buds
      • How to Permanently Remove Fungus Gnats
      • How to Graft Cannabis
      • How to Fix Helmet Head – Stuck Cannabis Seeds
      • How to Remove/Prevent ROOT ROT Pythium
      • Destroy All Hermies/Nanners
    • Bro Science
      • Can you Touch Colas/Pistils? What Happens?
      • Can you Grow a Cracked Marijuana Seed?
    • Setups
      • Grow Tent Setup Checklist: 2×4 vs. 4×4
      • SETUP COMPLETE GUIDE
      • DIY DRIP
        • 2 Plants – 2 x 4 Tent – Emitters
        • 4 Plants – 3 x 3 Tent – Emitters
        • 4 Plants – 4 x 4 Tent – Halos
        • 9 Plants – 5 x 5 Tent – Halos
      • Best Airflow and Setup for Small Grow Tent
        • How Hang AC Infinity CLOUDLINE t4 Inline Fan Carbon Filter
        • AC INFINITY CLOUDLINE Controller 67 69 -App Setup
        • How to Setup and Install CLOUDLINE Controller
        • How to Install Inline Fan – Outside Tent
      • How to Choose LED Grow Lights
        • How to Hang LED Grow Lights – In Tent
        • How to Test your LED Lights
          • Apogee MQ-500 vs Photone – Spider Farmer SF2000 Testing
      • How to Clean a Grow Tent Basic
      • How to Sterilize a Grow Tent – Advanced
    • Hydro
      • Hydro COMPLETE GUIDE
        • THE MASTERCLASS
        • Chlorine and Chloramine in Water for Cannabis Plants
        • Why Start Hydro in Rapid Rooters
        • How to Make Hydroponic DWC Top Off Water
        • How to Make Hydroponic Vegetative Nutrient Juice – DWC Feed Schedule
        • How to Add Juices to Reservoir
        • How to Make Hydroponic Bloom & Flowering Nutrient Juice – DWC Feed Schedule and Recipe
        • When to Flip Your Hydroponic Cannabis Plants
      • How to Setup a RDWC System
      • Hydro vs Soil Series – Grow Journal – RDWC
    • Breeding
      • CBD Project – F* Big Pharma
      • Making Southern Belle – A Joint Breeding Project
  • Reviews
    • Top Picks
      • 2×4 vs. 4×4 Grow Tent Buying Guide
      • Best Cannabis Growing Tools: 10 Essentials That Save Time
      • Six Cannabis Grow Methods Compared: HWGrow Project Setup
      • Best Grow Tent Humidifier
      • Best Grow Tent Dehumidifier: Why Mini Units Fail
      • Best Carbon Filter – AC Infinity vs. Vivosun vs. Generic
      • Best Internal Fan – Genesis vs. 3 Other Generics
      • Best Mason Jar for Curing
      • Best Weed Grinder – Kozo vs. Vivosun vs. 3 Other Generics
      • Best Trichome Magnifier – Jewelers Loupe vs. Digital Microscope
      • Best Hole Puncher for Fabric Pots
      • Best pH Meters – Apera vs. Vivosun vs. 2 Other Generics
    • Equipment
      • Apogee MQ-500 Review: How to Use Sample and Log Modes
      • DIY Push-Button Drip Irrigation for Indoor Plants
      • AC Infinity CLOUDLAB 743D
      • Bluelab TRUNV2 Truncheon
      • Bluelab PENCON TDS EC Mete
      • AC Infinity S4 vs. Vivosun Inline Fan: 4-Inch Test
      • iGrowtek Generic 6 Inch Inline Fan
      • VIVOSUN 32W 950 GPH Air Pump
      • BUBBLEBAGDUDE – Instructions & Review – How to Make Ice Water Hash
      • Spider Farmer G12 Hydroponic Garden Review & Setup (2023 Model)
      • Cheapest Water Chiller for Hydro RDWC
      • Boveda 62 Humidity Packs
      • Rockwool cubes vs Rapid Rooters – Review and Comparison
      • Automatic Bowl Leaf Trimmer
    • LED Lights
      • How to Choose an LED Grow Light for Cannabis
      • Samsung LM301H vs LM301B – LEDs
      • Mars Hydro FC6500 Review: 2023 Test vs. 2026 Model
      • Vivosun VS3000 Review: 2022 PPFD Test vs. Current Specs
      • AC Infinity IONBOARD S44 Review: 2022 Heat Test Revisited
      • Spider Farmer SF2000/SF4000
        • Spider Farmer SF2000 2023 Driver Review: Mean Well vs Spider Farmer
        • Spider Farmer SF2000 Review Based on Harvest
      • Best Budget LED Grow Light 2024 – Medic Grow Fold 800W – Unboxing, Light Test & Best Settings
      • Bloom Plus XP-4000 LED Light
      • ViparSpectra KS3000 Review: What My 2022 Test Actually Showed
      • FAMURS Dimmable TF3000 LED
      • Sunshine Farmre LED Light
      • FloraFlex 700W – Unboxing, Light Test & Best Settings
      • PANDVILLOW 400W Generic LM301B
    • Nutrient Tests
      • Fox Farm’s Happy Frog Potting Soil – Lab Results vs. Home Tests – How to Fix & Balance
      • General Hydroponics Flora Trio vs Fox Farm
      • How HWGrow Tests Nutrients: pH, EC and PPM Protocol
      • Fox Farms Grow Big
      • Fox Farms Big Bloom
      • Fox Farms Tiger Bloom
      • How to Use General Hydroponics Flora Series
      • Rapitest Home Soil Test Kit
  • PROJECTS
    • GROW WITH ME MASTERCLASS
      • Grow With Me Masterclass – Welcome
      • Grow With Me – Day -7 – Preparing Fabric Pots
      • Grow With Me – Day -3 – Germination & Rapid Rooters
      • Grow With Me – Day 0-3 – Transplanting to Fabric Pots
      • Grow With Me – Day 3 – 21 – First Feedings & Juices
      • Grow With Me – Day 21 – 28 – Veg, Topping & LST
      • Grow With Me – Day 29–41 – Blending Juices, Dunks, Responsive Feeding & Reading Leaves, LST
      • Grow With Me – Day 42-49 – Defoliation, Pruning, LST & Flip
      • Grow With Me – Day 49-60 – Early Bloom Cycle – Routine Tasks
      • Grow With Me – Day 61 – 88 – The Mid Bloom Cycle – Bud Support & Even Light
      • Grow With Me – Day 89-End – Pre-Flush – Cutting Nutrients & Chop Prep
      • Grow With Me – Finale – Chop & Dry Room Prep
      • GWM Cloning MASTERCLASS
    • HOW TO BREED MASTERCLASS
      • Define Your Cannabis Breeding Project: Selfing, Crosses and Trait Goals
      • Day 0–10: Root Two Clones for a Cannabis Breeding Project
      • Day 10–24: Establish the Pollen Donor and Seed Receiver
      • How to Mix STS Spray: Validated Formula, SDS and Safety
      • Day 24–30: STS Spray Schedule Before the 12/12 Flip
      • Day 30–42: Manage the Reversed Donor and Know When to Stop STS
      • Day 42–56: Synchronize the Pollen Donor and Seed Receiver
      • Day 56–66: Pollinate Cannabis and Confirm Early Seed Set
      • Day 66+: Harvest, Dry and Store Cannabis Pollen
      • How to Test Cannabis Seed Maturity Before Harvest
      • How to Harvest, Grade, Clean, Dry and Store Cannabis Seeds
    • META SOIL PROJECT
      • FULL EPISODES
        • EPISODE 1 – IN THE BEGINNING – CLONES
        • EPISODE 2 – FIM & DRAINAGE
        • EPISODE 3 – DIE OR LIVE
        • EPISODE 4 – AUTO VS MANUAL FEEDING
        • EPISODE 5 – VEG PHASE REVIEW
        • EPISODE 6 – DEFOLIATION, LST 7 PRUNING
        • EPISODE 7 – FLIP & STRETCH
        • EPISODE 8 – TOPDRESSING & FIXES IN BLOOM
        • EPISODE 9 – AERIAL DEFOLIATION & DEFICIENCIES
        • EPISODE 10 – BUDS STACKING – UGLY IS HERE
        • EPISODE 11 – Leaves Bud Rot Stem Support
        • EPISODE 12 – Macro Close Ups THC/Buds
        • EPISODE 13 – Flushing, Senescence, Pre-Harvest
        • EPISODE 14 – CHOP, WEIGHTS, WET TRIM, HARVEST & CURING
      • Mr. Canucks Grows Gaia Green Mix Breakdown
      • 420 Scene Super Soil Breakdown
      • TPS Nutrients Coco Mix Breakdown
      • Coco for Cannabis Breakdown
      • Great Lakes Water Only Breakdown
      • BuildASoil 3.0 Breakdown
    • How to Grow Weed in a Pringles Can
  • Legality
    • Legal without Card
      • Alaska
      • Arizona
      • California
      • Connecticut
      • Colorado
      • District of D.C.
      • Massachusetts
      • Maine
      • Maryland
      • Michigan
      • Minnesota Cannabis Home Grow Laws
      • Montana
      • New Mexico
      • New York
      • Ohio
      • Oregon
      • Virginia
      • Vermont
    • Legal with Conditions
      • Illegal to Grow States
      • Hawaii – with MM Card
      • Illinois – with MM Card
      • Missouri – with Registration
      • Nevada – 25 Miles from Dispensary
      • Oklahoma – with MM Card
      • Rhode Island – with MM Card
      • South Dakota – Distance
      • Washington – with MM Card
    • Illegal but you thought they were Legal
      • Mississppi – Almost
      • New Jersey – No
    • Complete List of Illegal States
  • About
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    • Grow with Me Masterclass – Monthly Subscription
    • Breeding Masterclass – Monthly Subscription
    • HWGrow Community Chat
    • Custom Feed Chart
    • Support HWGrow
    • Cup of Coffee
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