So a few days ago 2 of my plecos died at the same time. I do not know what they looked like or anything my dad had found them. Then a few days later my last one died. I had noticed when I got home that it was very bloated I really didn't think anything of it he was acting normal sure enough a few hours later it was dead. Any ideas on what could have done this. I haven't done anything different in the take in the past few months. just so strange.....