Wtf is this!?!?!

we've done our research and still don't know!

That's pretty distinctive, I think you;ll find it here: https://www.rollitup.org/marijuana-plant-problems/216537-self-diagnose-your-plants.html

herbose said:

That's pretty distinctive, I think you;ll find it here: https://www.rollitup.org/marijuana-plant-problems/216537-self-diagnose-your-plants.html

Click to expand...

it looks like uve been spilling nutrient solution on that fan when u water/feed ..

k....my bf and i have been debating what it is...but it makes sense cuz he waters them and he's clumsy. +rep to the both of you

Looks a little like this picture of manganese deficiency but in an earlier stage.