Am about to make a batch of oil.....normally i use 99 iso but am all out.... Ive been told methanol works well but ive nvr tried... Has anyone used this? How different is it from iso?
Not yet... Hows the ph been on them and what was the nute rating? It might be iron or boron being locked in medium
And are u sure there getting proper drainage? That medium might not allow for enough air to the roots
Boron is found in most nutes... U can buy it from a drugstore but is dangerous to use in that high concentrate... Read ur nutes if it has it ur good
As for how boron, is found in almost all soil but its not in all...and is often missing from used dirt or low nute medium
Whats ur humidity and room temp?
And is there a chance of air toxicity? ... Some material lets off fumes when warmed.
Have u tried to flush them? I know it shouldnt b nute burn but sometimes shit happens.
As for light input i would try a dome/cone top with lights mounted in it... U may b able to add 2 more to it...
Thechemist - am unsure which would be better but would think u would want higher penetration may turn out better
U may want more light... I did my Skywalker kush in a simillar arrangement and found that the sad amount of bud i gott off it was closer to shake... If u can get 8-10k lumens it would be better off... U will get some with what u r useing but it wont be worth the effort and cost