semicircle angelfish
| Scientific name | Pomacanthus semicirculatus |
|---|---|
| Descriptor | Cuvier |
| Year of description | 1831 |
| IUCN category (World) | LC |
| Family | Pomacanthidae |
| Genus | Pomacanthus |
Introduction
The Pomacanthus semicirculatus, commonly known as the semicircle angelfish, is a tropical fish native to the Oman Sea, the Coral Sea, the Philippines Sea, the Japan Sea, the Red Sea, the Southeast Asian Seas, the Indonesian Seas, the Indian Ocean, and the Western Tropical Pacific Ocean.
Who is it?
Morphology
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Average size30 cm
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Maximum size40 cm
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Longevity15 year
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ShapeCircular
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Patterndrawn scales
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Average size30 cm
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Maximum size40 cm
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Longevity15 year
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ShapeCircular
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Patterndrawn scales
How to recognize the semicircle angelfish ?
The semicircle angelfish is tricolored with a predominantly yellow, blue, and green body.
This species also has blue patterned scales.
As a juvenile, the angelfish has half-circles in black, blue, and white colors.
Sexual dimorphism
Not specified dimorphism.
Behaviour & Life cycle
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dietomnivorous with carnivorous tendency
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Sociabilityliving as a couple or alone
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territorialYes
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Way of livingdiurnal
The semicircle angelfish is a fish that can live alone or in pairs and naturally resides mid-depth and near the seabed. It is relatively calm in temperament.
Although not strictly territorial, this fish can be aggressive towards other species. It also shows signs of aggression towards its own kind.
Reproduction
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Reproductiondont le mode de reproduction est encore inconnu
The reproduction mode of the semicircle angelfish is still unknown.
Harmless species
This species does not represent any particular threats to humans when encountered in its natural environment.
Where to find it?
Conservation status of populations (IUCN)
Where to see this species?
What is its habitat?
Natural environment characteristics
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Temperature22 - 26 °C
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Depth0 - 0 m
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FlowStrong and Medium
Biotope presentation
The bottom is typically made up of sand and rocks.
Main recommendations for fishkeeping
Deontology
In order to preserve wildlife, if you acquire this animal, it must not be released into the wild. See also, the Fishipedia charter.
Fishipedia supports the practice of responsible and environmentally friendly aquarium keeping. We encourage maintenance if it is motivated by a desire to understand the biological functioning of living things and if it is done with respect for animal life.
We believe that aquaristics is an opening to the discovery of aquatic environments, especially freshwater, and that this knowledge is necessary to better protect and respect these environments. Logically, we refute the compulsive purchase of animals that would not find a sufficient and / or adapted place in the host aquarium.
Our recommendations
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Min volume600 liters
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Population min1
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Temperature22 - 26 °C
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pH (acidity)8.2 - 8.4
Characteristics
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Difficulty breedingmoderate
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Robustnesstolerant
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Behaviourslightly aggressive
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Availabilitystandard
General reminders
It is strongly advised to read the complete dedicated file and to get information on the feedbacks of maintenance of the envisaged animal, this to avoid any potential conflict whose end result is generally the death of the individual (or the other inhabitants). It is important not to overload your aquarium to limit pollution. This will make maintenance easier.
General reminder on maintenance datas
Le démarrage d'un aquarium est une partie primordiale pour l'équilibre et le bien-être des poissons. Lorsque l'on met en eau un aquarium, l'eau passe naturellement par un cycle biologique : le cycle de l'azote. Celui-ci dure environ trois semaines. Tous les 2 jours, nous vous conseillons de tester votre eau jusqu'à ce que le taux de nitrite soit à zéro pendant plusieurs jours d'affilée.
Pour accélérer ce cycle, vous pouvez utiliser un activateur de bactéries comme JBL Denitrol. Cette solution riche en bactéries vivantes et enzymes permet une mise en place rapide du cycle de l'azote. Les poissons peuvent alors être introduits plus rapidement.
Il est important de tester l'eau de son aquarium régulièrement pour maintenir un environnement sain pour les poissons et les autres habitants. Les tests d'eau permettent de mesurer les niveaux de différents paramètres tels que le pH, la dureté totale, ainsi que les taux de nitrates, de nitrites et d'ammoniaque.
Pour réaliser ces tests, vous pouvez utiliser des produits d'analyse spécialisés tels que JBL ProScan qui permet de réaliser un diagnostic de l'eau directement via un smartphone. Il existe également des coffrets de tests plus classiques de bandelettes, comme JBL PROAQUATEST.
En cas d’usage de l’eau du robinet, vous pouvez utiliser un conditionneur d’eau de type Biotopol de JBL pour éliminer les substances nocives comme le chlore, le cuivre, le plomb et le zinc. Les conditionneurs d'eau garantissent une meilleure santé aux poissons et une meilleure croissance des plantes.
Chlorine and chloramine are dangerous for the health of animals. Used to disinfect water, these agents are present in significant quantities in tap water. We recommend using an anti-chlorine agent every time you change the water. In addition to chlorine, treatments and medicines sold for aquarium use sometimes contain dangerous heavy metals in high doses.
Specific needs for the semicircle angelfish
The semicircle angelfish is a marine species which lives naturally at a temperature between 22 °C and 26 °C. For proper maintenance, the temperature should never exceed the 29°C for long periods. Nitrate levels should remain below 50mg/L. To keep the water clean and unpolluted, plan on changing 20% to 30% of the water volume each month. In seawater, it is also possible to remove nitrates using one of the following methods: Jaubert, denitrator on sulfur, biopeletts, vodka method.
The breeding of this species is accessible on condition of being well informed about its needs in aquarium . Any cohabitants must be chosen with care to avoid the loss of animals.
Formal incompatibilities
Cohabitation & Environment
In a community aquarium context, this species should be kept in a minimum volume of 600 liters.
The semicircle angelfish may show signs of aggression. In general, this species should not be mixed with large territorial species or other overly aggressive species, in order to avoid possible stress or even injury.
However, it can coexist with other species with a peaceful temperament and with some slightly territorial neighbors, as far as the volume of the aquarium allows. It is important to avoid that two territorial species share the same living area in an aquarium of insufficient volume.
As previously said, The semicircle angelfish is a species that lives naturally in the current. Thus, we advise the installation of an oversized filtration system (10 to 20 times the volume of the tank) in order to guarantee a strong current and especially a strong oxygenation. A venturi system will improve the dissolved oxygen rate during summer.
Tips for feeding
The semicircle angelfish is omnivorous with carnivorous tendency.
This species can eat dry food (flakes, pellets), fresh food and frozen food. To avoid deficiencies, it is recommended to vary the types of food.
You should not overfeed your residents to avoid polluting the water. For most species, it is better to feed a few small portions each day rather than one large meal.
Reproduction protocol
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egg-laying protectionNo
Hybridization risks
In general, it is advised not to mix several species of the same genus or different varieties of the same species, to avoid the risks of hybridization.
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Sources & Contributions
Participation & Validation
The Fishipedia team and specialist contributors are committed to providing high-quality content. However, although the information comes from scientific sources or testimonials from specialists, the cards may contain inaccuracies.
Adrien Falzon
Patrick Chartrer
Translation
Translation done with the valuable contribution of our translators, who make this information available to a wider audience. We sincerely thank them for their commitment.
Where to see this species?
Scientific partners
Tags
Species of the same family
Same genus
