Hello all i will try and post a photo later when i figure out how to. My Tuxedo Platy has lost its dorsal fin and stays on the bottom of the tank. Its never been a mover since i got him about a month ago he just sits there and now he has stopped eating. All my other fish are doing fine. I do feel sorry for this fish because the other fish are starting to pick on him. Before he did a mad thrash trying to get out the way.