Common name: Bristle-tail Filefish

General information

The Bristle-tail Filefish, scientifically known as Acreichthys tomentosus, is a unique and fascinating species popular among reef aquarium enthusiasts. This species is known for its cryptic appearance, with a body covered in skin flaps that help it blend into its surroundings. The coloration of Acreichthys tomentosus can vary, but it typically exhibits a mottled pattern of green, brown, and white that provides excellent camouflage among the algae and seagrasses of its natural habitat.

Care

Bristle-tail Filefish are relatively hardy and can adapt to life in captivity if provided with a well-established aquarium that mimics their natural environment. They require plenty of live rock for hiding and grazing, as well as a varied diet that includes both meaty foods and marine algae. It's important to note that this species may nip at some soft corals and clam mantles, so it should be kept with caution in a reef tank.

Reproduction

In the wild, Acreichthys tomentosus is oviparous, with females laying eggs that are then fertilized by the male. In the aquarium, breeding is less common, but with the right conditions, it is possible to encourage spawning. The eggs are adhesive and will be attached to the substrate or decor within the tank.

Symbiosis

While not known for a specific symbiotic relationship like clownfish and anemones, the Bristle-tail Filefish does play a role in controlling nuisance pests in the aquarium. It is particularly valued for its appetite for Aiptasia, a type of pest anemone that can overrun reef tanks. This natural predation helps maintain a balanced ecosystem within the aquarium.

Habitat

Acreichthys tomentosus is native to the Indo-Pacific region, where it is commonly found in shallow, coastal waters, seagrass beds, and coral reefs. It is adept at navigating the complex structures of its environment, which provides it with shelter and food sources.