Update: Loach WAS doing very good, swimming completely upright and better able to control where it was going. Still bumping things but not as bad. I had treated the tank with a fungus cure and it seemed to help a great deal. Was planning to move him back into the 55 gal today. Then went to look for him earlier and found he had jumped out of the tank, though a 2 in slot in the back. I don't know how long he was out. Upper side was hard but bottom was still soft - no signs of life. But I couldn't let him go so I held him in the tank and just moved him back and forth (like I seen on TV) to see if anything happen. I saw his mouth move, so I kept it up. He's breathing now, but just laying on the bottom. So we're nursing again. Any suggestion this time, I know cover the hole.