Hello- I have a young albino oscar who I'm afraid may have the beginnings of fin and tail rot. There was initially one area which I thought may have been a little injury, but now there are more frayed areas although no white spots or anything. He shares a 55 gal. tank with a large silver dollar and a bushy nose pleco, who show no symptoms. If this is fin and tail rot, should I remove him to a hospital tank to treat him or treat the whole community tank as a precaution since the others were exposed? I really appreciate any help!!