Thanks guys. I'm just glad he's not suffering any more.
There was a member on here that was trying to rehome a doubltail that looked exactly like Eros. I can't remember who it was but I wish I could have gotten him. I made myself promise I would only get fish I could breed from now on and since he was from petco I wouldn't breed him. Maybe I'll get a nice double tail to breed someday.
*Be smart.. Do your research!!*