Originally Posted by Luke Highwalker

im pretty sure hygrozume needs 8-10ml per gallon to be effective, but NEVER over 15ml/gallon.

70 degrees is right on the cusp of pythium temperatures. you need to get that chiller to pull down another 5 degrees or so. 65-70 would be better. always in the 60's is ideal.

also when using HZ i would recomend changing the water at least every other day, if not everyday. as the HZ breaks down the dead nasties there will be all kinda funk floatin around in the res. many claim this to be normal, and just ride it out..by the weeks end your roots should be back to new.

in the future i would try using HZ before the problem starts, instead of waiting till its diseased and trying to recoup it....

root disease will look just like lockout and def. of all kinds. is there any brown snot on the roots? or are they just slightly discolored?

on a side note, what kind fittings are those on the buckets that you used and bulkheads? are they watertight? id love to go to a 9 bucket system instead of a rubbermaid tub, but i cant find bulkheads cheap enough.