
Pseudanthias hawaiiensis
Family: Serranidae ยท Anthias
Also known as: Hawaiian Anthias, Hawaii Longfin Basslet, Hawaiian Fairy Basslet
The Hawaiian Longfin Anthias is a rare and highly sought-after species endemic to the Hawaiian Islands. Found at significant depths along steep reef walls and drop-offs, this anthias is distinguished by its remarkably elongated pelvic fins that can extend well past the body, giving it an elegant, flowing appearance. Males display vivid pink to reddish coloration with yellow accents, while females are more muted with a rosy-pink hue.
As a deepwater endemic species, the Hawaiian Longfin Anthias presents significant challenges for even experienced aquarists. Collection from its deep habitat makes specimens expensive and sometimes stressed upon arrival. The species prefers cooler water temperatures and subdued lighting conditions that replicate its natural environment. A minimum tank size of 70 gallons is recommended, with plenty of open swimming space and some rock structures for shelter.
Feeding can be particularly challenging during the initial acclimation period. Like all anthias, this species requires multiple daily feedings of meaty foods including frozen mysis shrimp, enriched brine shrimp, and cyclops. Patient, gradual acclimation and a quiet tank environment are key to successfully keeping this stunning Hawaiian endemic. Its rarity and beauty make it a prized addition for expert aquarists who can provide the specialized care it demands.
Hawaiian Longfin Anthias are carnivorous planktivores that feed on zooplankton in deep water currents. In captivity, offer multiple small feedings daily of frozen mysis shrimp, enriched brine shrimp, cyclops, and finely diced seafood. An automatic feeder is highly recommended to maintain the frequent feeding schedule.
Hawaiian Longfin Anthias are peaceful and should be housed with calm, non-competitive tankmates. Avoid aggressive or boisterous species that may outcompete them for food or cause stress. Best kept with other peaceful reef fish in a low-stress environment.
Check CompatibilityHawaiian Longfin Anthias have not been bred in captivity. As protogynous hermaphrodites, females can transition to males, but the extreme difficulty of maintaining this species and its rarity make breeding attempts impractical at this time.