"Bob" wrote in message
oups.com...
My clown fisn are Ocelaris clown fish and about the same size. Someone
suggested that the problem might be an infected swim bladder. They
suggested treating with Maracyn 2. Howver, I have only one tank and
can't isolate the fish. So I'm guessing that this treatment is
impractical given I have snails, crabs, and cleaner shrimp.

Do not use antibiotics in your tank if you have invertebrates.