Regal Angelfish

Geographic Origin and Biotope: Distributed from the Indian Ocean (including the Red Sea) throughout the Pacific Ocean, including the Maldives, Great Barrier Reef, and Tahiti. Inhabits almost exclusively coral-rich slopes, exposed outer reefs, and clear lagoons, preferring very shallow waters abundant in caves (1-48 meters).

Taxonomy and Morphology: Regal Angelfish. The sole member of the genus Pygoplites. Medium size (maximum 25 cm / 10 inches). The body is highly compressed, less discoidal than the Emperor, and more oblong. Gill spine always present. It is considered among the most beautiful, graceful, yet delicate fish in the world.

Social Behavior: The most elusive, mild, and timid among the large pomacanthids. Lives a withdrawn life, perpetually sneaking and hiding in the maze of rocks. It will NEVER impose itself in the aquarium hierarchy, making it extremely vulnerable to stress if chased by tangs, triggerfish, or other angelfish, which will prevent it from feeding.

Coloration and Sexual Dimorphism: The livery "explodes" with color: bright yellow-orange background marked by sharp vertical stripes of pure white, edged with black lines, resembling a colorful zebra. The lower part of the anal fin is covered in concentric neon blue horizontal stripes. Red Sea specimens have a bright yellow throat and chest (more prized and robust); Indo-Pacific ones have a white-gray chest.

Aquarium Setup: Aquarium of at least 500 liters (130 gallons), dedicated solely to calm and peaceful fish. The abundance of high-quality, porous live rock to graze on in peace is vital. The tank must offer constant shaded areas. Avoid voracious tankmates (like dominant damselfish) that would terrify it.

Diet and Feeding: The real trial for the keeper: it is an almost exclusive spongivore (sponges and tunicates). In the aquarium, it very often REFUSES commercial food and starves to death in 3 weeks. It is crucial to attempt acclimation by forcing fresh clams opened on the half-shell, live mysis, masago (fish roe), and specific frozen sponge-based angelfish preparations.

Water Quality: Intolerant of any kind of pollution or pH drop. Pristine oceanic parameters are mandatory: pH 8.2-8.4, specific gravity 1.025, temperature 24-27°C (75-81°F). Once settled and eating (which can take weeks), it becomes surprisingly long-lived.

Compatibility and Tankmates: Considered the "Most Reef Safe" Angelfish among the large formats. Although in rare cases it might nip Zoanthids or clams, it almost always ignores most hard SPS and LPS corals. To be paired exclusively with submissive and peaceful species (Anthias, small Gobies, Blennies, and small wrasses).

Aquarium Reproduction: Impossible in private aquariums. In the wild, forms harems with one male and several females that court at dusk with ascending dances, releasing pelagic eggs that hatch as plankton. Commercial stock relies entirely on wild capture.

Risks and Diseases: Has one of the highest post-capture mortality rates in the aquarium hobby (food refusal). It is essential to demand seeing the fish EATING AVIDLY in the store before purchase. Very sensitive to copper medication, preferring the use of chloroquine in case of infections (Ich, Velvet).