I bought a couple of tiny 1.5 inch clown loaches just over a week ago. several are fine but there was one that was obviousley sick when purchased. It has been lying in the corner for about a week and also appears to have damaged/lost the spine under one eye and has not been eating. two days ago I transferred it to a 60 gal tank along with its healthy tankmates. it has become a lot more active and even began feeding but looks a little shrunken just behind the head. is it still a hopeless case or is the activity and feeding a good sign?