Common name: Olive Anthias

General information

The Olive Anthias, scientifically known as Pseudanthias olivaceus, is a vibrant and active fish that adds a splash of color and dynamism to any reef aquarium. They are part of the Anthiinae subfamily, which is known for its brightly colored and ornately finned members. The Olive Anthias is particularly appreciated for its olive to pinkish body hue and the striking purple lines that run along the sides of the males.

Care

Olive Anthias are moderately challenging to keep due to their specific dietary and social requirements. They thrive in well-established aquariums with plenty of swimming space and numerous hiding places among live rock. A peaceful community tank is ideal, as they can be shy and may be outcompeted for food by more aggressive fish. They require a diet of small, meaty foods multiple times a day to maintain their health and coloration.

Reproduction

Like many anthias species, Olive Anthias are protogynous hermaphrodites, meaning they are born female and have the potential to turn male if the dominant male is removed from the group. They exhibit a complex social structure where a single male dominates a harem of females. In the aquarium, breeding Olive Anthias can be challenging, but with stable conditions and a well-structured social group, it is possible to observe their fascinating reproductive behaviors.

Habitat

Olive Anthias are found in the Western Pacific, from the Philippines to northern Australia. They prefer steep outer reef slopes and are typically found at depths ranging from 10 to 60 meters. In their natural habitat, they form large aggregations, swimming in the water column above the reef where they feed on zooplankton.