I have been using GH 3-part for about 1 1/2 years now and dont have much of a ph flux at all. I do weekly rez changes. during the week according to my meter I have a swing from about 5.2 to 5.9 and that is through entire grow. also when doing topoffs I do things just a lil different I guess. most what I read is peeps do plain ph'd water topoffs in between rez changes, what I do is alternate nuted water and ph water during topoffs. In other words I drain and fill my rez on Sunday. On Monday if it needs a gallon of water it gets plain PH'd water. If on Tuesday it needs a gallon of water it gets a gallon of full str nuted water and just keep swapping back and forth. Now I'm not saying what I do is the best or most correct thing to do but it works really well here!!
tinytoon Reviewed by tinytoon on . General Hydro 3 part and ph??? ive been using Advanced 2 part for some time and have many people trying to convince me that the GH flora 3 part is better. So ive given it a try but it seems that the ph flux reacts differently then what I was use to using Advanced. Basicly when Im in veg the ph I set my ph at 5.6 and let it climb just as I was use to doing with AN, but when Im flowering it seems to be dropping, so Im always taking it to 6.1 and letting it descend. This is new to me cause It seemed that with AN is did the same Rating: 5