The Gamma uv sterilizer has been set up for two days, and has done its job wonderfully. The downside is that I've lost one botia loach and there are a few specs of ick on the threadfins. Nothing disasterous, I can deal with the ick..... but I'm a little curious as to what killed the botia loach....he's hanging on by a thread, but obviously isn't going to make it. The bases of all his fins are blood red, as well as his anus. The other Botia (Angelicus) loach is fine.