in my novice experience that looks like 1 of 2 things, they need more humidity and are over heatin OR it's a nute burn....so I dont know if that helps but to let you know I keep my humidity in the 50+% area....infact right now my room is @ 76.6F and 54% as long as you keep your humidity above 40% BUT if I am wrong and this is a big BUT could someone pls correct me, I hope this helps!
Malevolent Reviewed by Malevolent on . new pics and a problem? 7 weeks morrow veg. almost 7 days under 400w MH rest of time under 148w in tubes got that yellowin happening on leaves, worried & :confused: gave em 90 mins no MH today, still had flouros on. raised the reflectix up off the ground to allow air flow about top pot level. temp 81.9 / 35% Rating: 5