The Spiny Chromis, Spiny-tail Puller, Spotty-tail, scientifically known as Acanthochromis polyacanthus, is a captivating fish species belonging to the damselfish family (Pomacentridae). This species is recognized for its vibrant coloration and distinctive physical features, making it a fascinating subject for marine enthusiasts and aquarists alike.
Description & Characteristics
Acanthochromis polyacanthus can grow to a maximum size of 16.0 cm. Its body is characterized by a striking combination of colors, including a deep blue hue that dominates its dorsal and ventral surfaces. This vibrant blue is accentuated by a splash of orange or yellow on the fish’s flanks, further enhancing its visual appeal. The species’ name, “Spiny Chromis”, aptly describes its spiny dorsal fin, which is a prominent feature. The “Spiny-tail Puller” and “Spotty-tail” names allude to the presence of small, dark spots scattered across its tail, which may be less prominent in some individuals.
Habitat and Occurrence
Acanthochromis polyacanthus is a common inhabitant of the subtidal, sublittoral, infralittoral, and deep zone of the oceans. This species thrives in the neritic marine zone, which extends from the lower limit of the intertidal zone to the shelf edge at approximately 200 meters deep. Its presence in these diverse environments underscores its adaptability and ability to thrive in a range of underwater habitats.
Taxonomy
Acanthochromis polyacanthus belongs to the Class: Teleostei, Order: Ovalentaria incertae sedis, and Family: Pomacentridae. This classification reflects its position within the broader taxonomic framework of fish, showcasing its relationships to other species within the damselfish family.
Feeding
Acanthochromis polyacanthus is an omnivorous species, exhibiting a diverse diet that includes algae, amphipods, brine shrimp nauplii, brine shrimps, copepods, cyclops, flakes, frozen food (large sort), invertebrates, krill, lobster eggs, mosquito larvae, mysids, pellets, and zooplankton. This versatile feeding strategy allows it to adapt to varying food availability in its diverse habitats.
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