Pervagor spilosoma – Fantail Filefish
Pervagor spilosoma was first described by Lay & Bennett in 1839. This fish belongs to the family Monacanthidae, which consists of 31 genera and over 100 species. The genus Pervagor contains eight species. The genus name “Pervagor” means “nomadic” or “wandering”, while “spilosoma” refers to the “numerous dark spots” on the body. Their common name is Fantail Filefish.
Synonyms: Monacanthus spilosoma, Stephanolepis pricei, Stephanolepis spilosoma.
Description
Appearance: Pervagor spilosoma has an elongated body that is yellowish or white color with many black dots. The head has irregular dark lines. The caudal fin is red to orange with a black band. This fish can grow up to 18 centimeters long.
Differences between sexes: No specific physical differences between males and females have been documented. Behavioral differences have also not been specifically noted.
Behavior and temperament: This fish is generally peaceful but can be aggressive towards conspecifics. They live solitary or in pairs and are not shy. They are both bottom dwellers and swimmers in midwaters.
Life expectancy: There is no specific information on life expectancy in the wild or in aquariums.
Biotope
Pervagor spilosoma is found in coral reefs of the eastern Pacific Ocean, particularly around the Hawaiian Islands. They live in coral-rich environments with rocks and sand. The bottom consists mainly of rocks and sand. No specific natural enemies have been documented.
Diet
In the wild: They feed on algae, small benthic invertebrates and corals.
In the aquarium: It is recommended to feed them macroalgae, microalgae and small crustaceans. It is better not to feed large polyps or corals, because they are not completely reefsafe.
The Aquarium
Aquarium size: Minimum 700 liters. For multiple pairs a larger aquarium is needed.
Decoration: The aquarium should be decorated with rocks and sand.
Water parameters: Suitable for tropical conditions, but specific parameters are not documented.
Introduction: It is better to let the aquarium mature first.
Compatibility: They can live with other peaceful fish such as Clownfish, Surgeonfish and some Wrasse species.
Breeding in the Aquarium
There is no specific information about breeding Pervagor spilosoma in aquariums.
Particularities
Pervagor spilosoma is known for its changing colors depending on the environment and mood. They can be used against aiptasia and other unwanted anemones.
Conclusion
Pervagor spilosoma is an interesting fish species for advanced aquarists due to its unique appearance and behavior. They are not completely reef safe and require a large aquarium with ample space and hiding places. Although they are not difficult to keep, they can be aggressive towards conspecifics. It is important to manage their diet properly to ensure their health and well-being.
Video
Author
John de Lange
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