Well I did my res change with about 25ml of the supplement+GH up to 1000ppm and some weak calmag. I'll keep a close eye on them and top up with ro+calmag every other gallon.

Amazingly, with everything mixed and topped up to the proper waterline, it was exactly 5.8PH. How cool is that.
MisterE Reviewed by MisterE on . Supplements for flowering? I am at day 20 of flowering and was going to pick up a few needed things and was wondering if I should be picking up some extra supplements to increase or make a healthier yield? I currently am only using RO water, GH 3 part, and calmag+. I'm not looking to do anything experimental or difficult. Just wondering if there's any "must have" or "highly recommended" flowering supplements? Rating: 5