No I mean is the black spot the size of coin/soda can/dinner plate etc?It`s part of the main cola . the pistils are black/brownish...
And do you mean the cola size or what?
Thought as much, probably just windburn from your fan, turn it down a bit and dont have it pointing directly at your plantYeah , the plant is the closest to the fan but the i have two plants in the same grow box and the other one is fine except for lil buds...