Most Petco’s that sell saltwater fish usually has them starting at $17.99. But I would for sure QT any fish from Petco before going into your tank. Only one I know of is in Redondo Beach off Inglewood ave and the 405. Not sure where your located.
also- Ellis Aquatics in Compton- usually has a variety of fish, plus he can order you anything you want as well.
good luck!
when your ready for a rainbow bubble tip anemone- hit me up. I have some for $40 cash or trade lol.