
Source: Wikimedia Commons
Pseudanthias pascalus
An anthias that is vivid purple all over, forming large shoals on Pacific reefs including southern Japan. Hard to wean onto food and demanding to keep; several feedings a day and group keeping are the baseline.
The amethyst or purple anthias (Pseudanthias pascalus) belongs to the subfamily Anthiadinae and ranges across the Pacific from Bali and the Ryukyu Islands to the Tuamotus, north to southern Japan and south to Australia and New Caledonia. It is more common at oceanic islands than on continental reefs, forming large groups around coral outcrops and caves on outer reef slopes and feeding on copepods, other planktonic crustaceans and fish eggs. The body is vivid purple; males carry a red stripe along the flank. Maximum length is about 20 cm. It is a protogynous hermaphrodite: if the male disappears, the largest female changes sex. Among anthias it is one of the harder species, and many specimens refuse food and waste away. Offer frozen planktivore foods, mysis and enriched brine shrimp in small portions 3-4 times a day; a refugium supplying copepods helps greatly. Keep one male with several females in a large tank that offers both open swimming space and shelter.
The Purple Queen Anthias lives 3-5 years in captivity.
The Purple Queen Anthias grows to Up to 20 cm.
The ideal temperature for the Purple Queen Anthias is 24〜27℃.
Origin
Pacific Ocean (Bali and the Ryukyu Islands to the Tuamotus, north to southern Japan, south to Australia and New Caledonia)
Lifespan
3-5 years in captivity
Sources: Saltwaterfish.com / FishBase
Edited & verified by: BreederDirect editorial team
The taxonomic, regulatory, and husbandry data on this page are compiled and verified against the authoritative primary sources below.
Sources: CITES Appendices (species not listed) / IUCN Red List
Regulations may change. Always verify the latest information with the relevant authorities.
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Size
Up to 20 cm
Temperature
24〜27℃
Frozen mysis, enriched brine shrimp, copepods, frozen foods for planktivores
Many specimens refuse food and waste away. Confirm the fish is eating before purchase and keep live food or copepods available after introduction. Dislikes harsh light and turbulence.
About 340 L or more for a group. Provide open swimming space plus caves and crevices for resting.
24-27C, pH 8.1-8.4, SG 1.020-1.025. Sensitive to poor water quality; needs stable conditions and moderate flow.
Planktivore. Frozen mysis, enriched brine shrimp and copepods in small amounts 3-4 times a day; a copepod refugium helps stability.
Harmless to corals and invertebrates. Keep one male with several females; males fight. Avoid boisterous tank mates that outcompete it for food.
Advanced. This is an advanced-level species. It requires specialized equipment and advanced husbandry skills with precise environmental control.
The ideal temperature for Purple Queen Anthias is 24〜27℃. Avoid sudden temperature changes and maintain a stable environment.
The average lifespan of Purple Queen Anthias is 3-5 years in captivity. With proper care and nutrition, they can live a long and healthy life.
Purple Queen Anthias typically reaches Up to 20 cm as an adult. Size may vary depending on care conditions and individual genetics.
Purple Queen Anthias feeds on: Frozen mysis, enriched brine shrimp, copepods, frozen foods for planktivores. Aim for a balanced diet with appropriate feeding frequency.
The price of Purple Queen Anthias varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Last updated: September 15, 2026