My angelfish that I have had for a couple of months just unexpectedly died. My water parameters are fine, but all things went to h*ll when we lost power on Friday the 21st from 8:30AM to 2:00PM. I tried to run the sump tank pump, but that only lasted about 4 hours. Do you think that was the cause? I checked all over his body after I pulled him from the tank and I could not find anything visibly wrong with him. The only other thing I can think of is my 8" Bala harassed him to death. I am not sure if this is the case b/c up until Friday they would swim side by side and float around together. Thoughts?