Oily leaves?

[M.B.A.]

I just got home from running errands and noticed that 2 leaves on my PurpleKush have oily patches on them. Any1 know what this could be caused by?

[Opie Yutts]

Are you sure it's not moisture, from where another leaf was sitting directly on top of it?

[M.B.A.]

yeah, there are no there leaves there...???

[stinkyattic]

Have you used neem oil? Did you use a lot of it?

[M.B.A.]

never used neem, I think 1 of my CO2 makers was leaking, sugar water was all it was when I looked at it under my microscope