Nutient question for noob

I’m running a 2 site rdwc with ionic nutrients and hydroguard, I keep reading about humic/fulvic acid being good for soil and hydro plants but I don’t know if it will be ok to do with hydroguard thanks for any help

It will do fine, but will stain your roots brown.

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Thank you very much, do you think its worth it to use

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I only used it in soil. If you feel it’s beneficial then sure. It’s a secondary nutrient. I’m sure it helps, but if you don’t get the proper NPK ratio then it won’t matter.