Spots and Yellowing! HELP!!!

actually i take it back because i cant find any referances, but i can say i have had that problem before a few times and i swear its because of ph. but tell me do you have a fan blowing on your plants to keep them cool from the lights, it is a must? the affected area is only at the top of your plant and that is the hottest place... i've ruled everything else out. i still think its a good idea to just leave your water alone and see how not testing it works for you, cuz it works for me(but im probably just lucky).

See the way the leaves are kinda of twisted and pointing in odd directions? That's a sure sign the ph is off, which will make all the difference in the world what nutes your plant will absorb. Get your ph in the correct range and the nute problem will most likely figure its self out.

ya i have an oscillating fan one of end of my grow room pushing the warm air towards and over the canopy of the plants and another fan pulling the air out of the grow room, its constant circulation.

hey i've been reading and i found what your plant is suffering from,Molybdenum (Mo) deficiency. This picture is straight from "MH_Cannabis_Botany_2nd_Edition_Naturally" pg.59, my phone isn't the best at getting the little details hehe sorry. it matches with your pic exactly! i was wrong about the ph. By the way this book is free on the internet and I recommend it. its 91pages long.

dirtysnowball said:

hey i've been reading and i found what your plant is suffering from,Molybdenum (Mo) deficiency. This picture is straight from "MH_Cannabis_Botany_2nd_Edition_Naturally" pg.59, my phone isn't the best at getting the little details hehe sorry. it matches with your pic exactly! i was wrong about the ph. By the way this book is free on the internet and I recommend it. its 91pages long.

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You need many references; every chart I look at like this seems to be a little different. So many things can look very very similar it seems.

i see your point... i'll try and get more of them in the future