My friend Eric finally decided to get himself a baby ball today! We went to a local pet store to pick up all the stuff he needed. When it came to lighting I told him to just to get a 60w bulb and a timer for day/night cycle, but the dude at the pet store said he should also get a black light for the night and to leave that on all night. I always thought that having a light on all the time was a bad thing. My question I guess would be, would it be ok to have a blacklight on all night? I told my friend Eric to just use the incadesent bulb for now, until I got some answers.