What is causing this? COCO

PJ Diaz

Well-Known Member
It sounds like the plants aren't drinking and/or pots aren't draining. Like others have suggested, use H2O2 to kill and rot in the medium. I'd give them a good flush of half-strength nutes + H2O2, and make sure they are really draining well. I never liked straight coco myself because I felt it didn't drain as well as it did once I started adding perlite, however many straight coco users will swear that straight coco is the best. Can you post whole plant pics?
 
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