THX MAN!!! I've posted on marijuana plant problems my pics with my problems and r u sure about male leafs? Male leafs doesnt contain thc?1: Ditch the male.
2: In what? Flush. But it would be nice to know what your using and how your using it, to give a suggestion on how to prevent it again.
3: I would use a 2 or 3 gallon pot strain dependent. Use a 3 to be safe and top for bushing/yield.
4: pH to 6.5 and water/feed at that.