Holacanthus Ciliaris, the queen angelfish, is among the three most recognizable angelfish in the marine aquarium hobby. The other two being the French Angelfish (Pomacanthus Paru) and the emperor angelfish (Pomacanthus Imperator). It reigns as the most popular species within its genus, much like the flame angelfish (Centropyge Loriculus). They are part of the Pomacanthidae (Marine Angelfish) family and are one of the largest angelfish among its cousins.
The queen angelfish can be found throughout the Caribbean Sea, Brazil all the way up to Florida and the Gulf of Mexico. It is very closely related to Holacanthus Bermudensis (Blue Angelfish) and they look completely alike to the untrained eye. These two angelfish have been known to interbreed in the wild. Their offspring have been called Holacanthus Townsendi. It should be noted that Holacanthus Townsendi is not a valid species within the genus Holacanthus. Thankfully, telling the two apart is an easy enough task, queen angels have a blue crown on their heads, that crown is missing on blue angels.
Like all large angelfish, the juvenile form of the queen angelfish is colored very differently from adults. Juveniles possess bright blue vertical bars from its face to its main body. These bars will slowly disappear as they grow. Adults are a beautiful iridescent blue and yellow throughout their bodies.
Juvenile angelfish also take on a peculiar role in the wild. Like the cleaner wrasse, they act as “cleaners”. As cleaners, they service larger fishes that need some form of parasite removal.
Queen angelfish are pricey no doubt, small ones cost between $80 to $90 while adults can fetch $200 and beyond for show quality specimens.
Almost all larger angelfish have the potential to become massive bullies in a marine aquarium and the Queen angelfish is no exception. It is hostile towards other large angelfish but it generally ignores other species of fish. It often exhibits extreme hostility towards other queen angelfish. Or towards the blue angelfish for that matter. Keep only one queen angelfish per aquarium.
Queen angels are huge, they can reach up to 18 inches in the wild. One and a half feet!. However, they rarely achieve such lengths with a maximum size of 12 to 13 inches in captivity.
An aquarium no smaller than 150 gallons should be used to house a queen angelfish. As with all larger marine fish, a bigger tank is a better tank. They require large amounts of space to swim so ensure that your rock scape allows for this. Resist the the temptation to get those cute 2 inch juveniles for your 50 gallon aquarium. They will quickly outgrow such small tanks in no time at all, leaving you with the headache of either selling or finding larger quarters for it.
The queen angelfish is not reef safe, it can eat corals or at least nip on them until they eventually perish. Although some hobbyists have kept them in reef aquariums with minimal damage to their corals, queen angelfish are better suited to large, fish-only aquariums.
In the wild, their diets are made up of plankton, algae, corals, tunicates and marine sponges. Housing them in a reef aquarium where they are surrounded by corals is not a good idea. Your corals may end up as expensive meals for them. Offer them a good variety of foods from sheets of nori/seaweed to meaty foods like krill or mysis shrimp. A pretty good to offer is Formula Two, containing a blend of seafood and an extra amount of algae. It is available in three forms, flake, pellet or frozen cube.
Ocean Nutrition produces By far the best foods for any large angel, Angel Formula. Specifically designed for large angelfish, they contain a good mix of fresh seafood, algae, vitamins and most importantly, marine sponges. Angel Formula is only available in frozen cube form.
Should you opt to buy some seaweed from your local mart, always remember to buy the plain unflavoured/unspiced version. Raw nori is a good choice if available. Get a clip for your nori and stick it on the side of the aquarium glass.
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