Thank you. I still want to know what caused his death. He was a great little fish. I raised him from an egg. I have two of his brothers left from the same batch of eggs and one older brother from an earlier batch, as well as his mom, dad, aunt and two uncles.
They all seem fine, just a little depressed. They keep looking at the spot where I found him dead. It is times like these that I think that whole 2 second memory for fish is not true. It has been 15 hours and they still swim over to the spot, stare at it, and then look at me as if to say "where did you take him?" It is so sad. His mom and dad are constantly doing that more so than the rest, although the rest are doing it too.