Anthias – Whitleyi’s Slender Anthias (Luzonichthys Whitleyi)

Updated on January 30, 2021 by

Also known as the Magenta Slender Anthias, the Slender Whitleyi Anthias is an Anthias species that stays in relatively deep water reefs that are at least 65 feet or greater.
Their bodies are very slender. Just as the name suggests, they are magenta in color and have yellow fins. 

Quick stats – Whitleyi’s Slender Anthias

Category Info
Origin Australia, Fiji, New Caledonia
Max size 3” / 7.62 cm
Aquarium Min. 55 gallons / 208.2 litres
Water 72-78° F / 22-25° C

dKH 8-12, pH 8.1-8.4

sg 1.020-1.025
Care level Moderate
Behaviour Peaceful
Diet Carnivore
Family Serranidae
Colors Red, yellow
Lifespan 3-5 years

Whitleyi’s Slender Anthias description

They exhibit sexual dimorphism with the males and females having the same coloration which makes it very difficult to distinguish. Whitleyi’s Slender Anthias are reef safe, and will not harm their tank mates or any invertebrates. They are very peaceful and sometimes shy.

The Slender Whitleyi are hermaphroditic in nature. This means the female Slender Whitleyi will often morph and replace the dominant male when he dies. 

Due to their shyness and reclusiveness, they are difficult to adapt when they are moved into an aquarium. But they adjust after a while and become non-reclusive and are able to survive.

Whitleyi’s Slender Anthias in the ideal aquarium

Whitleyi’s Slender Anthias (Luzonichthys Whitleyi)

A 55 gallons/208.2 litres or larger marine or reef aquarium with several hiding places and live rock for feeding is very perfect for the Slender Whitleyi species. They prefer being kept in small groups of 5 or more which gives them a sense of security.

As shy and peaceful species, they should be first added to the aquarium before introducing larger or more active fishes. They aren’t compatible with aggressive and overactive fish as this will often send them into hiding and also skip feeding. 

Whitleyi’s Slender Anthias feeding

They do best when they are fed enriched frozen brine shrimp, varied diet of frozen mysis shrimp, and may also eat high-quality flake foods when they are moved to captivity in an aquarium.

The foods are ideally offered in small quantities throughout the day. An attached refugium that cultivates copepods and amphipods give a steady supply of nutritious live food to keep them alive and active.