Yeah, I mean check under the hydroton.

PH is a possibility, so is overfeeding, but I'd check the roots first. Then PH, if its overfeeding it will fix itself while its on the rinse cycle this week. I'm not completely sure the difference between food grade 202 and peroxide. I've always used peroxide, works wonders for me. Doesn't sound like an O2 problem, even if your stones were a little clogged, clearly there is enough air in the line.
low_rdr Reviewed by low_rdr on . Leaves dieing during flowering??? Is it normal for my leafs to be drying out and dieing during flowering? Ive looked around some say yes some say no...here are some pictures now, seem a couple have fell over the last 2-3 days. Getting to much nutes? Not enough? I do the 3 part flora series and am going by the dosing on the bottle. Also have been using the liquid koolbloom (just started using that the last 2 nute changes) Im going to change out my nutes here in a minute and add some hygrozyme this run. Any help would be great Rating: 5