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FishintermediateSaltwater

Lyretail Anthias

Pseudanthias squamipinnis

AnimaliaChordataActinopterygiiSerranidae

📍 Indo-Pacific — Red Sea to Japan

Ask Finn

One of the most colourful reef fish — females orange-pink, males dazzling magenta-purple with elongated tail filaments. Best kept in a harem (one male, multiple females) with strong flow and frequent feeding.

Size5"
Min Tank75g
School5+
peaceful
Zonemid

Care Guide

Diet

Lyretail Anthias are carnivorous and require frequent small feedings—ideally once daily. Offer a varied diet of mysis shrimp, copepods, small crustaceans, and high-quality PE (prepared) pellets designed for anthias. They have fast metabolisms and will not thrive on infrequent feeding schedules.

Behavior

These fish are active mid-water swimmers that display striking sexual dimorphism and hierarchical behavior. Males are territorial and display elaborate courtship with elongated tail filaments, while females remain more subdued in coloration. They are generally peaceful but require strong water flow and should be kept in a harem structure (one male with 4+ females) to minimize aggression.

Breeding

Breeding Lyretail Anthias in captivity is extremely difficult and rarely successful in home aquaria. They are sequential hermaphrodites with complex social hierarchies that are difficult to replicate in confined spaces. Successful breeding requires large tanks (150+ gallons), pristine water conditions, and specific environmental triggers that are poorly understood in captive settings.

Common Diseases

Ich (Cryptocaryon irritans)

Symptoms

White spots on body and fins, rapid breathing, flashing against surfaces, lethargy

Treatment

Increase temperature to 28-29°C, maintain excellent water quality, use copper-based treatments or hyposalinity therapy; quarantine affected fish

Bacterial Infection

Symptoms

Torn fins, open sores, discoloration, cloudy eyes, loss of appetite

Treatment

Improve water quality and flow, perform frequent water changes, use antibiotic treatments if severe; ensure adequate nutrition to boost immunity

Nutritional Deficiency

Symptoms

Faded coloration, lethargy, reduced appetite, stunted growth, loss of tail filaments in males

Treatment

Increase feeding frequency to 3+ times daily, diversify diet with vitamin-enriched foods, supplement with quality pellets and frozen foods

Parasitic Infection (Flukes/Copepods)

Symptoms

Excessive scratching, visible parasites on gills or skin, rapid breathing, weight loss

Treatment

Quarantine fish, use freshwater dips or medicated baths, treat with antiparasitic medications; maintain pristine water conditions

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Quick Facts

pH
8.1–8.4
diet
carnivore — mysis, copepods, PE pellets
maxSize
5 inches
minTankSize
70 gallons
temperature
73–82°F (23–28°C)

Temperature

73–82°F

23–28°C

Stats

Community tips0
Kept by0 hobbyists