Acreichthys tomentosus, commonly known as the Bristle-tail Filefish, is a distinctive and peaceful species ideal for marine aquarium enthusiasts seeking an effective algae grazer. This filefish is appreciated for its unique bristled tail and subtle colouration that blends well in reef environments.
Care Level: Moderate. Suitable for hobbyists with some marine aquarium experience.
Temperament: Generally peaceful but may become territorial towards conspecifics or similar species. Best kept singly or in a large tank with ample hiding spaces.
Diet: Omnivorous with a preference for algae and small invertebrates. Supplement diet with marine algae sheets, mysis shrimp, and specialised filefish foods to ensure balanced nutrition.
Minimum Tank Size: 120 litres (approximately 30 gallons) to provide sufficient swimming space and territory.
Reef Compatibility: With Caution. While generally reef safe, Acreichthys tomentosus may nip at soft corals, clam mantles, or sessile invertebrates. Monitor behaviour closely in reef setups.
Lighting and Water Flow: Standard reef lighting and moderate water flow are suitable. Avoid strong currents that may stress the fish.
Placement: Provide plenty of live rock for grazing and hiding. This species appreciates complex aquascapes with crevices.
Origin: Indo-Pacific region.
Maximum Size: Up to 15 cm (6 inches) in length.
Overall, Acreichthys tomentosus is a valuable addition to marine tanks for algae control and visual interest, provided its reef compatibility is carefully managed.
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