🐠 Blue Ring Angelfish (Pomacanthus annularis)
🐠 Blue Ring Angelfish (Pomacanthus annularis)
An Orange-Gold Body With Brilliant Electric-Blue Stripes • A Signature Blue Ring Behind the Gill Cover • A Bold, Long-Lived Centrepiece
📋 The Blue Ring Angelfish, also known as the Annularis Angelfish or Blue King Angelfish, is a dramatic marine fish. Adults show an orange-gold body crossed with brilliant electric-blue horizontal stripes, a yellow tail, and a distinctive blue ring behind the gill cover that becomes more pronounced with age. Juveniles look completely different, a dark navy body marked with swirling blue and white stripes, gradually transitioning into the bold adult pattern as they mature.
It comes from coral-rich lagoons and outer reef slopes across the Indo-West Pacific, from East Africa through Indonesia to New Caledonia and southern Japan, one of the larger Pomacanthus angelfish available in the trade. Every Blue Ring Angelfish we ship is feeding well, and we offer several small feedings daily to help it settle in confidently.
It's not reef safe and will nip at soft and stony corals as well as clam mantles, making it best suited to a spacious fish-only or FOWLR aquarium. Once acclimated, it becomes a bold, confident feeder that readily recognises its keeper, though this same confidence can translate into bullying more timid tankmates, so thoughtful stocking order matters. It reaches up to 40cm, so plan on at least 750L.
💡 Highlights
🧡💙 Striking Adult Pattern: Orange-gold body with electric blue stripes and a distinctive blue ring
👶 Dramatic Juvenile-to-Adult Change: Navy blue-and-white swirl juveniles transform completely
⚠️ Not Reef Safe: Will nip at corals and clam mantles
📏 Large, Long-Lived Centrepiece: Can reach up to 40cm and live over a decade
🐟 Bold, Confident Feeder: Recognises its keeper once settled
🧾 A Quick Look at the Blue Ring Angelfish
📛 Common Name: Blue Ring Angelfish (Annularis Angelfish, Blue King Angelfish)
🔬 Scientific Name: Pomacanthus annularis
👨👩👧 Family: Pomacanthidae
🌍 Origin: Indo-West Pacific (East Africa to Indonesia, New Caledonia, southern Japan)
📏 Max Size: Up to 40cm (≈ 16")
🧂 Specific Gravity: 1.020-1.025
🌡️ Temperature Range: 24-27°C (75-81°F)
🧠 Care Level: Intermediate to advanced
💖 Temperament: Semi-aggressive; can bully timid tankmates once settled
🌿 Reef Safe: No: will nip corals and clam mantles
🏠 Min Tank Size: 750 L (≈ 200 gallons)
📌 Tank Level: Mid to lower level
🧬 Stock Type: Wild-collected as standard stock
⏳ Lifespan: 10-15 years in well-maintained aquariums
🍽️ Diet: Omnivore (sponges, tunicates, algae, meaty foods)
🐣 Reproduction: Protogynous hermaphrodite; egg layer; not bred in home aquariums

















