Sillyfishies
Aquarium Advice Addict
I have 5 crazy zebra danios in my tank. I've had them for a few days and they're the only things in my tank. If I have the light on they will sit calmly at the top of the water and just kinda swim around. If I turn off the light they immediately sprint around and (literally) bounce off the walls. I turn it back on they calmly swim back to the top and swim around calmy. It has to effect that either a) they get hypnotized by the light and get excited when they break free or b) they think I can't see them when the light off and try to break out. What's up with them. I got them from Walmart so I bet theres something off about them!