Liveaquaria has them at about $40-45, but my LFS
usually sells these at about $30 so it's similar pricing to other fish, but it would be a large investment for a first fish so something cheaper would be better
. Same feeding requirements as most fish eating flakes, pellets, frozen food. I read that it's 2-5 inches per gallon of fish. Thats a large stretch and just for a general idea. It really depends on how much waste the fish produces and how much you'll have to feed it, but the gallon per inch rule is an okay way of knowing how much fish you want. Inverts as in shrimp don't really count that much since they don't swim and are peaceful, not fighting for territory. Crabs, snails, feather dusters, clams, etc. can be numerous and won't count for the inches per gallon of water rule.