Okay guys. Something funky is going on with my 'biggest' guppy. His tail is still growing back fine but his back is really weird. I assume it's because of the finrot his tail was subjected to before. His back is starting up hump up. We had a danio with a severe hump but he seemed to be pretty healthy and lived for a good couple years.
if it's what I'm thinking of, guppies look TERRIBLE as they age, and petstore guppies age quicker than normal (about 6-7 months seems to be old with ours, while we have a mutt who will be a year in August).