Pyramid Butterfly - Black (Indian Ocean)

The exquisite Black Pyramid, or Zoster butterfly, has high contrast coloration which creates a bold impression. Its body is deep velvety black to dark chocolate, eclipsed on its midsection by a large white band which is widest at its belly and narrow on top. Its tail is also pure white, and a shock of lemon yellow is painted on its dorsal fin above the white band. It grows up to 7 inches and needs an aquarium of at least 125 gallons. It is regularly imported from the Indian Ocean.

This species is hardy and normally quite peaceful; it should not be kept with aggressive tank mates. It can be kept singly or in pairs or groups which should be added at the same time to a large aquarium. Butterflyfish do not show differences between males and females. They are related to angelfish, but lack the angel's distinctive cheek spines. A butterflyfish's favorite food is an anemone, so they should not be kept in the same aquarium with one unless it is guarded by aggressive clownfish. The butterflyfish knows to attack the anemone on its mouth, which does not sting, and will make a quick meal of it. Many species of butterfly also benefit from filamentous algae in the aquarium to graze on.

This species is a planktivore and is considered one of the most reef safe butterflyfishes. However, caution should be used when combining it with corals, clams, sponges, and feather dusters. They do not typically bother other types of invertebrates such as crustaceans. They feel most secure when there is plenty of live rock to hide in, as well as open space for swimming. This species is easy to feed on a variety of meaty and herbivore preparations such as frozen Mysis shrimp, half shell clams, marine algae and Spirulina; it should be fed 2-3 times a day.