Do clownfish like to live in saltwater?

yes, it can.. In fact mine is leaving with ayellow tang, clown fish, another tang and a batfish ... Ive had him for almost 1.5 years and yet nothing bad have happened.. At first its a little bit hard to feed since its a slow moving fish, but feeding it frozen food which will spread easily it wont be a problem. Mine swims normally by the fish and eats the food right by the other fish.. This would take some time but it will happen. Unless i got an unshy sea horse and a fast moving one.