Blue Ring Angelfish – Juvenile | Reef Safe | Care | Eating | Feed

Blue Ring Angelfish

The blue ring angelfish, scientific name, Pomacanthus annularis, also referred to as the Annularis Angelfish and the Blue King Angelfish is an angelfish of the family Pomacanthidae. It is a member of the genus Pomacanthus, composed of enormous marine angelfish. In this article, I am going to talk about Blue Ring Angelfish juvenile, reef safe, care, eating, feed.

Blue Ring Angelfish profile

This species might be discovered within the Indo-West Pacific oceans from East Africa, all through Indonesia and New Guinea to New Caledonia, north to southern Japan.

Blue Ring Angelfish Habitat

These tropical marine fishes inhabit coastal rocky coral reefs and could also be additionally encountered in caves or on wrecks, at depths of three–30 mm (0.12–1.18 in).

Blue Ring Angelfish Description

Pomacanthus annularis can attain a body size of about 45 cm (18 in), however, normally the overall body size rises up to about 30 cm (12 in).

Bodies are deeply compressed and the mouth is sort of small. They have 13 dorsal spines, 20-21 dorsal mushy rays, three anal spines, and 20 anal mushy rays.

Adults of the blue ring angelfish exhibit a darkish orange to brown or violet coloring with a blue ring close to their head (therefore the frequent name) and blue horizontal semicircular marks on the center of the body.

Two blue stripes across the face. The caudal fin is white. Juveniles of the blue ring angelfishes are at first a darkish blue, virtually black, with broad turquoise and white vertical stripes.

These fishes present a substantial resemblance to the Emperor Angelfish in that it undergoes modifications in coloring in its improvement from youth to maturity.

Blue Ring Angelfish Biology and conduct

Blue ring angelfishes are continuously encountered in pairs. Similar to different species of the genus Pomacanthus these angelfishes dwell in the harem because the male defends a territory and controls a number of females.

After the courtship ritual women and men launch eggs and sperm. At the start of life, all juveniles are females (protogynous hermaphrodites), turning into males in the course of the improvement, with a whole coloration variation from the juvenile to the grownup stage.

Juveniles favor very shallow waters with rock or lifeless coral substrates and brief filamentous algae. Adults primarily feed on zooplankton, sponges, filamentous algae, and tunicates.

Juvenile Blue Ring Angelfish look fairly totally different than adults. The juveniles are black with blue and white vertical stripes whereas the adults have an orange-yellow body with horizontal blue stripes, yellowtail, and a blue ring close to the pinnacle space. They are bought wherever from $50 to a number of lots of {dollars} relying on age and dimension.

The angelfish in Pomacanthus spp. are (usually talking) much less aggressive than the angelfish from Holacanthus spp. however, use warning when stocking. It’s finest to maintain annularis angelfish in giant fish solely sort setups.

Blue Ring Angelfish

They need numerous open swimming houses, must be fed usually (three or four instances per day), and can choose from clams, corals (sps, lps, zoanthids), and different invertebrates within the tank.

This angelfish additionally will recognize having hiding locations or caves to retreat into once they really feel threatened or for once they hunker down in the night.

Feeding the Blue Ring Angelfish might be a problem since they primarily eat sponges within the ocean. They will choose on the live rock within the tank continuously and will even go after dried seaweed. Look for excellent saltwater angelfish meals with a sponge in it.

Hikari and Ocean Nutrition now have meals developed to feed marine angelfish that are composed primarily of sponges. Small items of recent or thawed marine origin meals like fish, squid, scallops, and so on. ought to be supplied often.

Blue Ring Angelfish Reproduction

For members of the genus Pomacanthus, spawning usually begins with the onset of nightfall and is considered triggered by the lower in light. However, it isn’t identified whether or not there’s a correlation between time of year or with the lunar cycle and the onset of spawning in angelfish.

The adults have a courtship ritual that ends with the female and male slowly swimming towards the floor of the water and releasing eggs and sperm.

The larvae then swim with the plankton for a month before persevering with improvement. Spawning is believed to happen between just one male and one feminine at a time, however, males probably mate with more than one feminine within the group.

Blue Ring Angelfish Diet

P. annularis are omnivorous, consuming benthic invertebrates similar to zooplankton, sponges, tunicates, and coral polyps. Also, these fish eat ascidians, algae, weeds, and nektonic fishes.


Some giant angelfish, such because the P. annularis have been recorded to dwell as much as 25 years in an aquarium.

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Almost all angelfish, and possibly the blue ring angelfish, are haremic, which implies there may be one male defending a territory with two to 5 females. This territory might be from the dimensions of a WC to the dimensions of two-car storage (Tullock, 1996). They can usually be present in caves in the evening or swimming for meals in the course of the day in pairs or alone

In the aquarium

Blue ring angelfish is a highly sought-after and prized angelfish. Often it might probably attain a size close to 12 inches in captivity. In the aquarium, they’re algae grazers, however, eat fish and coral flesh as nicely.

They are identified to eat shrimps and nibble on each giant polyped stony and small polyped stony corals. Overall most seasoned reef aquarists don’t suggest conserving this species in a reef aquarium attributable to these habits. Learn more about yellow tang fish.

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