Three-stripe damselfish

Dascyllus aruanus

Family : Pomacentridae

FishMarinedamselfish

Small white fish with three vertical black bands. Very active and territorial despite its size.

Three-stripe damselfish — photo 1 sur 3
The original uploader was Elapied at French Wikipedia. · Wikimedia Commons · CC BY-SA 2.0 fr1 / 3
Popularity
Beginner marine fish
reef-compatible
Availability
Common in shops
Shop availability
IUCN Status
LC
Least Concern
Biotope
Indo-Pacific+1
Récifs coralliens de l'océan Indien et Pacifique tropical.

Description

The three-stripe damselfish grows up to 10 cm. Its body is white with three vertical black bands. The fins are white. It is a very active and territorial fish, especially towards other damselfish. It can be aggressive in a small tank. It lives in small groups in the wild. It reproduces by laying eggs on a substrate.

Habitat

Region :

This fish lives in coral reefs, often associated with branching corals like Acropora. It frequents lagoons and reef slopes. Juveniles hide among coral branches.

Distribution :

Recommended parameters

Temperature2428 °C
pH8.18.4
GH812 °dGH
KH812 °dKH
Salinity1.021.025
NO₃
≤ 20 mg/L
PO₄
≤ 0.1 mg/L
Calcium
≥ 400 ppm
Magnesium
≥ 1200 ppm

Care

Difficulty
2/5
Diet
Omnivore
Min. tank
150 L
Min. group
3
Adult size
10 cm
Lifespan
6 years
Temperament
Territorial
Propagation

Care notes

Temperature 24-28°C, pH 8.1-8.4, salinity 1.020-1.025. Minimum tank size 150 liters. Omnivorous: brine shrimp, mysis, algae. Compatible with robust fish. Avoid shy fish. Can be kept in groups if tank is large. Territorial, introduce last. Breeding possible.

Similar species

Espèces proches, même habitat ou même maintenance

References