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Mertensii Butterfly
The Mertensii Butterfly is fairly hardy and will adapt well to life in an aquarium if acclimated properly. These can be kept in groups of fish, including other butterflies. They won't do well with fish that are overly aggressive, but they will also nip and pick at fish that are very timid. Like most butterflies, we don't recommend placing the Mertensii in reef aquariums because they are very likely to consume a variety of coral polyps and clam mantels. This butterfly will grow to be about 6" in size and will need ample swimming space. The Mertensii Butterfly is mostly a pearly white with black chevron markings and an orange posterior. Their dorsal fins are jagged and can get caught in nets. They are found in the Indo-Pacific inhabiting lagoons and seaward reefs near drop offs and ledges. Juveniles can be found in groups while adults are mostly seen singly or in pairs.
