I bought a pleco from walmart last night. I noticed the stomach was sucked in and it's fin were frayed. I knew i shouldn't have bought it in that condition but i didn't want to leave it there to die. So i put an algae wafer and an algae covered rock I have from my aquarium in a bowl. (separated from my ADF and goldfish) He doesn't seem to be eating . My question is can he be saved and what should i do to make him healthy again? Please help i know I sound crazy but I don't want him to suffer..