Can you identify problem with these leaves ?

i thought maybe calcium def ? its only on a few fan leaves and doesnt seem to be spreading so im not really worried ... yet

nute or light burn how close is your lights

Looks like over transpiration to me, I had a similar problem, I thought it was nute burn. Turned out my plants were losing water faster than they could take it in. Problem was poor ventilation, grow room gor too hot.

my room is like 72F max now, i did raise the lights
if you look at the small leaf in the bottom right corner its got a brown tip and is curling downward ... quite a few leaves are doing that too

did you mist your plants before your light comes on, thats sorta the lookswhat i had when i made the mistake

It is a mag deficiancy.

i thought maybe calcium def ? its only on a few fan leaves and doesnt seem to be spreading so im not really worried ... yet

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brasmith said:

It is a mag deficiancy.

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Looks like it could be both. Although it looks more calcium def than mag to me. Whats the pH of the run off in your soil?

hi there do you even spray your plants and get water drops or nute on the leaves that looks like nute burn