Common name: Humbug dascyllus
General information
The Humbug Dascyllus, Dascyllus aruanus, is a small and strikingly patterned damselfish that is popular among reef aquarists. It is characterized by its bold black and white stripes and is often found in association with coral reefs. This species is known for its hardiness and adaptability, making it a suitable choice for both beginner and advanced hobbyists.
Details
- Recommended minimum tank volume
- 100 liter (26 gallons)
- Salinity
- S.G. 1.020 to 1.025
- Temperature
- 24 to 28 °C (75 to 82 °F)
- Acidity
- pH 8 to 8.4
- Average size
- 10 cm (4″)
- Care level
- Easy Hardy and adaptable
- Diet
- Omnivore Flakes, pellets, frozen foods
- Social
- School Best in groups, can be territorial
- Reefsafe
- Yes
- Aggression
- Semi aggresive May be territorial with space
- Captive bred
- Yes Available as captive-bred
Taxonomy
- KingdomAnimalsAnimalia
- PhylumChordatesChordata
- ClassRay-finned FishesActinopterygii
- OrderPerch-like FishesPerciformes
- FamilyDamselfishPomacentridae
- GenusDascyllusDascyllus
- SpeciesHumbug dascyllusDascyllus aruanus (Linnaeus, 1758)
- SynonymsAbudefduf caroli Curtiss, 1938Chaetodon arcuanus Gmelin, 1789Chaetodon aruanus Linnaeus, 1758Dascyllus arnanus (Linnaeus, 1758)Dascyllus blochii Castelnau, 1875Pomacentrus devisi Jordan & Seale, 1906Pomacentrus emamo Lesson, 1831Pomacentrus trifasciatus De Vis, 1884Tetradrachmum arcuatum Cantor, 1850Tetradrachmum aruanum (Linnaeus, 1758)
Care
Humbug Dascyllus are relatively easy to care for. They thrive in well-established aquariums with plenty of live rock for shelter and territories. They can be territorial, especially in smaller tanks, so it's important to provide ample space and hiding places to minimize aggression. A varied diet of meaty foods, algae, and high-quality commercial feeds will keep them healthy and vibrant.
Reproduction
In the wild, Dascyllus aruanus forms breeding pairs or small groups. They are oviparous, with the female laying eggs on a substrate, which the male then fertilizes and guards. In the aquarium, breeding can occur if the environment is stable and the fish are well-fed, but raising the fry can be challenging due to their small size and specific dietary requirements.
Habitat
The Humbug Dascyllus is native to the Indo-Pacific region, from the Red Sea and East Africa to the Line Islands and Tuamoto Islands, north to southern Japan, and south to New Caledonia and the Great Barrier Reef. They are commonly found in shallow lagoons and on outer reef slopes, often in association with branching corals like Acropora.