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After your Hydroponic and DWC reservoirs are refilled with top off water, you need to add juices to hit your target ppm. Make sure that all figures in the chart factor in your initial ppm (if using tap) and there are 2 ways to hit your targets by adding juices:

Either pour juices into your reservoir while your TDS meter is submerged and measuring, then slowly add juice until it hits your target and stabilizes.

The other method is calculating how much to add(this formula only applies to 5 gallon buckets that are like 80% full):
Take you target PPM and subtract your measured PPM. Take this answer and multiply it by 3.5 and this will give the amount of juice you will need to add in milliliters(ml).

Add the juices in the appropriate proportions:

Click here to Download the Exact Recipe

Vegetative Juice: https://www.howweedgrow.com/hydro-vegetative-jucie-feed-schedule-dwc

Bloom Juice: https://www.howweedgrow.com/hydro-bloom-flowering-juice-feed-schedule-dwc

And finally DONT FORGET TO pH balance your reservoir.

Hydro Guide
How to Make DWC Top Off Water
How to Make Veg Juice
How to Add Juices
When to Flip Hydro Plants
How to Make Bloom Juice

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Comments

  1. If your running a 5 bucket setup and then Take you target PPM and subtract your measured PPM. Take this answer and multiply it by 3.5. Do you then multiply that number by 5?

    1. You’re over-complicating things, just pour juice into the reservoir until it hits your target ppm.

  2. Hey hey,

    Quick question. Just started to use your juice recipe for my hpa system.

    I’m using RO water and my rez water has a 0 ppm starting point. Should I get the water to 100-150 ppm with calmag then juice?

    I’m on week 2 of veg.
    I just mixed using just the juice and to achieve 300 ppm (500 scale) I had to use around 800ml of juice to hit that number.

    Thoughts? Thanks in advance

    1. No. The juice has everything. Flora micro has calcium and flora grow has magnesium. The only thing is epsom salt for more magnesium but only in veg. Please check out all the other videos on hydro via the menu

  3. When using the GH hydroponics feed schedule and the veg/bloom juice mixtures, with R/O at 0-5ppm and 5 gal systems- am I really only trying to target 205 ppm in week 5 veg? I feel like I am reading this wrong.

    1. yes, my methods are drastically different than what is taught online. You break in plants to adapt to low ppm’s, at the height of bloom, I am only feeding 350 ppm and all my journals are public. Here is my most recent grow in hydro: https://discord.gg/howweedgrow-905550117803810856

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