Queen Angelfish Care Guide
Holacanthus ciliaris · Saltwater Angelfish
What Queen Angelfish look like
The Queen Angelfish (Holacanthus ciliaris) exhibits a striking coloration characterized by a vibrant blue body adorned with bright yellow accents, particularly on the dorsal and anal fins. Adults can reach a maximum size of approximately 18 inches (46 cm) in standard length. Sexual dimorphism is subtle, with females typically exhibiting a slightly more rounded body shape compared to males. Notable morphological features include a prominent, elongated dorsal fin with a distinctive filamentous extension, and a series of small, closely spaced scales that create a shimmering effect. The species possesses a well-developed lateral line system, which aids in detecting water movements, and its dentition is adapted for grazing on algae and coral polyps. Defensive adaptations include the ability to retreat into crevices and the use of bright coloration to signal toxicity to potential predators.
Behavior & temperament
Queen Angelfish are generally found in pairs or small groups, displaying a social hierarchy where dominant individuals assert their status through displays of aggression and territorial behavior. They are primarily mid-water swimmers, often hovering around coral reefs and rocky outcrops. Breeding behavior involves elaborate courtship displays, where males and females engage in synchronized swimming and color changes. Their temperament can vary, with individuals exhibiting territorial aggression, particularly during breeding seasons, but they can also coexist peacefully with other species in larger aquaria. They are known to establish and defend territories around their preferred feeding grounds.
Diet & feeding
In the wild, Queen Angelfish are primarily herbivorous, feeding on algae, sponges, and coral polyps. In captivity, they require a varied diet that includes high-quality marine flakes, spirulina, and frozen foods such as mysis shrimp and brine shrimp to ensure optimal health.
Behind the name
The genus name 'Holacanthus' derives from the Greek words 'holos' meaning 'whole' and 'akantha' meaning 'thorn', referring to the spiny nature of the fish. The species name 'ciliaris' is derived from the Latin word for 'fringe' or 'eyelash', likely referencing the fringed appearance of the dorsal fin.
Plan your tank
Check the numbers before you buy: tank volume, salinity, salt mix, water changes, and your ongoing care routine.
Keeping Queen Angelfish?
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