The Maroon Clownfish Premnas biaculeatus, is the only member of the Maroon Complex. They have spines on their cheek area and their scales are smaller than other clownfish. They have a more compressed oval shape than clownfish from the Clarkii complex, who are more high backed, yet are almost identical in body shape the the Ocellaris Clownfish and True Perucla Clownfish of the Percula Complex, including the double dorsal fin.
Maroon Clownfish are hardy and easy to keep as long as water conditions are acceptable. They make a great fish for the beginning aquarist, but they are aggressive which will limit the selection of tank mates. The biggest concern with these fish is if you are keeping a pair. A moody, aggressive female picking on the male will cause a great deal of stress, which will eventually mean a sick fish.