hey guys i have a top feed hydroponic system the plants are in 5 inch baskets with hydroyton ive been having trouble with my roots my plants seem to grow great to week 5 then the roots seem to get rot the plant wilts leaves turn black/brown and pistols turn brown way before there time my res is kept at 64 degrees im using h2o2 i water 30 seconds on 1 min off has anyone had issues like this before? please help