Have you foliar fed them or spayed any water or mister on them ? I got a buddy that just foliar fed some and he thought everyday was okay but after 3or4 days the started to look like that and then got worse.

If not I would just give them all R/O water and no calmag either untill you see a difference.

Oh are they too wet ? My bro has been fighting root rot and that is the look on the leaves before they start turning yellow. You may want to dry them out.
LOC NAR on probation Reviewed by LOC NAR on probation on . help my plants are dying... high quality pics. hey guys, ive been posting on mulitple forums and still not a single person knows whats going on in the tent here... heres the story and details... 400wMH 14-24inches, in a homebox tent. 18/6 in happy frog soil. many different brands of fertilizer, all high grade stuff.. i am using R/o water, and i add 1 tsp/calmag/gallon Rating: 5