Black-axed swallowtail
| Black-axed swallowtail | ||||||||||||
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Black- axed swallowtail ( Chromis atripectoralis ) |
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| Chromis atripectoralis | ||||||||||||
| Welander & Schultz , 1951 | ||||||||||||
The black-axil chromis ( Chromis atripectoralis ) is a species from the family of damselfish (Pomacentridae).
Distribution and way of life
The fish live in the coral reefs of the tropical Indo-Pacific , on the islands of Oceania (not near Hawaii) and in the Indian Ocean near the Seychelles , Thailand and the west coast of Australia .
They live in large schools over bush-shaped hard corals , mostly of the Acropora genus , at depths of two to fifteen meters. They are constantly busy hunting zooplankton . In contrast to the green swallowtail ( Chromis viridis ), the black-axled swallowtail moves further away from its native coral hive and covers greater distances in the open water. In addition to its behavior, it is distinguished from the green swallowtail by a dark spot at the base of the pectoral fins and its size, the black-axed swallowtail is eight to twelve centimeters long.
Aquaristics
In marine aquariums , the black-axed swallowtail is not kept as often as the green swallowtail. Like this one, it is not that easy to keep as it is a constant eater and its digestive system is not adjusted to the normally only two to three feedings a day. To improve posture one can feeder daytime hourly give a small portion of food.
literature
- Gerald R. Allen: Damselfish of the World. Mergus Verlag, Melle 1991, ISBN 3-88244-007-4
Web links
- Black-axed swallowtail on Fishbase.org (English)