Well.. even though i dont like it, i went to wal-mart, and mosied over to the fish section. I saw something really sad, depressing, and digusting.. They had a tank full of dead corydoras, some that were still alive with no fins left even, and in it were a trio of puffers. Im guessing thats what did it. Either way it was really sad. this poor little cory was still alive and had absolutely no fins period. really sad v.v