I've been looking at stingrays for quite a while now. Last year I almost brought home 2 "teacup" stingrays. But when it came down to it i decided not to. I wanted to put a few stingrays into a 55 gallon. are there any rays that would even last in a 55 for a while? if someone can point me in the right direction with some info or a link/thread i'd greatly appreciate it 