I put up a black wall paper background on my new tank and its driving me nuts. Just doesn't look good. I have enough clearance between the wall and the tank that I could get a roller in there so I want to paint it black. Maybe this is a silly question and I'm over thinking but the tank is cycling and I'm anxious as it is to get some fish in there and don't wanna take any chances of killing off the BB colonies that have started. Think I would be OK?