News / Species Spotlight / Slender Seaver Anthias (Luzonichthys seaveri) (04/04/18)

Slender Seaver Anthias (Luzonichthys seaveri)

Species Spotlight - Slender Seaver Anthias (Luzonichthys seaveri)
In the middle of Micronesia, far from the beaten path, lies the obscure and remote Ant Atoll. This tiny speck of reef was explored back in 2014 by a team of researchers who descended deep into the dimly lit mesophotic zone and brought back to the surface a newly discovered fish of unparalleled beauty. A year later, it was described as Luzonichthys seaveri, and, recently, Quality Marine received specimens for the very first time.

Interestingly, these aquarium specimens came not from Micronesia, but, rather, from Eastern Australia, marking a considerable extension of this species known distribution. There is also a possible report of a juvenile having been collected from French Polynesia, suggesting that this is actually quite a widespread fish in the Central Pacific. However, to find them in the wild, one typically has to venture down to around 100 meters deep, explaining the great rarity of sightings thus far.

The Slender Seaver Anthias belongs to the small genus Luzonichthys, which now numbers just seven species. These occur across the tropical portions of the Indo-Pacific and can be recognized thanks to their relatively slender bodies and split dorsal fins. These traits give rise to the common names youll often seen applied to this group, either as the slender anthias or splitfin anthias. With respect to its congeners, L. seaveri is identified by the bright pink and yellow coloration of the tail, combined with a yellow and pink body which resembled the reverse of a Royal Gramma.

Aquarium husbandry is not much different than what might be expected from some of the other similarly proportioned anthias out there. Those in the subgenus Mirolabrichthys (e.g. Pseudanthias lori, P. tuka) are a good comparison, as they reach a similar size and can be expected to feed on roughly the same sort of zooplankton. A steady diet of calanoid copepods, fish eggs, and chopped mysis is a good place to start, with multiple feedings per day being a sensible approach. Multiple specimens can be housed together, and, obviously, its unwise to place this timid fish alongside overly boisterous tankmates. As this species originates from fairly deep reefs, excessively warm temperatures should be avoided.