evan grass Not to be a prick but if you do not know how to take care of a specific fish you should not keep it. There is plenty of info available on this site and on the whole rest of the web on almost all fishes habits, food, and habitat. Also you should never under any circumstance ever release a sick fish or any fish for that matter into the wild. That is the reason us fish owners get a bad name and fish become illegal to own. It also spreads disease to wild bodies of water not equiped to deal with it that kill large amounts of fish or give them dieases at the very least making them unhealty or inedible. Please read more info on keeping fish before obtaining any more especialy natives!