Ok, here's my set up ... 4 ice cream clones in a 10 gallon top feed, 400w hps. Using age old bloom 1/2oz per gallon which makes the ph of my distilled water go up. I just put them in 12/12 last week and everything was fine until three days ago... now ONE of the plants is all sad and droopy looking and the root masses for all the plants look brown but they're not slimy and there's no algae in my res so im hoping that's just from my brown nutes. I checked the ph of my run off and it was pretty high, like around 8-9 so I literally just changed the water before this post, this time using some vinegar to get me back to a little below neutral. So now that I have shared the background.... is it possible the high ph was my problem or could it be something else? The bulk of the roots are submerged so i dont think theyre thirsty? but I have an air stone in there so the water stays o2'ed .... I don't want to lose them. Any advice is deeply appreciated.