Most Damsels stay very small. Only a few members get large and should be avoided for a community tank as they get very aggressive. Their compact size makes them attractive for smaller tanks, especially those under 75 gallons. Damselfish are reef safe, but have to be introduced in the correct manner.

Do damselfish eat coral?

Damselfish kill a section of the coral, and then wait for algae to grow in the dead spot. On this coral, only a few live sections remain. Scientists say the world's coral reefs could go extinct during our children's lifetimes.

Are blue damselfish reef safe?

The colorful Blue devil damselfish is a hardy fish that adapts quite well to aquarium conditions. If it's suitable for other reef fishes or corals, it will likely be suitable for this fish. Due to their relatively small size as adults (about 3 inches), they don't require a large tank.