I bought one of these a few months ago. I hangs out out the bottom of the tank and hides under low hanging plant leaves and roots. The subtle colors are pretty, especially the hint of yellow. However, the fish I have is not peaceful. It is very teritorial, chasing anything (except my large angel) out of its territory. I've lost 4 of 5 cory catfish after adding my Blue Sky. I've seen it chasing the Corys, although I can't say its the cause of their deaths.