The Sailfin Blenny is a peaceful tank member who will get along with almost all other tank mates. It is known to nip at small-polyped stony coral and clam mantles. They are considered not reef safe because of their occasional interest in small coral polyps. The Sailfin Blenny does best in well-established aquariums with large amounts of natural algae to feed on. The diet can be supplemented with vegetable matter, spirulina, and herbivore preparations.