Couple months ago an adult goldfish ate his tail off mi put this little guy in his own tank and figured if he lived it would be AWSOME. Well he's lived and it's healing nicely and new scales are growing back. My question is he stay nose down all the time. He has learned to swim and I use weekend feeders for him to eat. Ok has he been damaged to point he will never be normal? At one point I thought he was getting lot better he was moving more going to top and blowing bubbles like a betta would. He would just go to top and hang out nose out of water. Now he seems depressed agin ? What would I do ? I don't want to give up on him but I do want him to be happy as any fish could be.