I haven't seen him close enough to the top of the tank when he tries this craziness so I don't anticipate any bruising. You know what's funny though now that you mention it...

My baby blue phase in a ten gallon tank has been more active lately too, I just thought this was because he's finally adjusted to his new home and was ready to explore more thoroughly, but the other day I saw him pushing his face against the mesh top and entwining his little fingers in it, trying to escape. Maybe they're both experiencing the same thing...that could mean this is because of environmental changes, like you said Rocko.

Ginger, he also might be hungry, I've seriously cut back on his food because of his weight. The diet I had him on didn't seem to working so now it's one cricket every three days, or two of the smaller crickets. I tried to give him a wax worm to supplement the other night but he seemed totally uninterested, which is weird cuz usually he attacks anything that moves. I'll try again next feeding and see if he wants it then...

Thanks for the replies guys, I feel a bit better now. I just don't want him to get brain damage or something because he's smacking his face into the glass ten times or more a night. :/