Back to atlas
FishMarineEasy

Encyclopaedia

Two-banded clownfish

Amphiprion bicinctus

A Red Sea native clownfish with a bright yellow-orange body and two black-bordered white vertical bands.

Family
Pomacentridae
Origin
Mar Rosso e Oceano Indiano occidentale
Origin
Tropical oceans and reefsExtra-Amazon South AmericaSouth and Southeast Asia
Tank use
Used in 0 tanks

Share

Species challenges
Water Temperature

24 °C - 28 °C

pH Value

8.1 - 8.4

Water type

Marine

Tank level

All levels

Adult size

14 cm

Species description

Geographic Origin and Biotope: Endemic to the Red Sea, Gulf of Aden, and northwestern Indian Ocean. Found in lagoons and outer reefs, associating with Entacmaea quadricolor and other anemones.

Taxonomy and Morphology: Member of the Pomacentridae family. Robust, deep body. Females grow larger than males, reaching a maximum length of about 14 cm (5.5 inches).

Social Behavior: Bold and territorial, especially around its nesting site or host anemone. Forms strong monogamous pairs that guard their selected territory closely.

Coloration and Sexual Dimorphism: Bright yellow to orange body, which can darken to brown-orange with age. Features two white vertical bands outlined in black. Females are larger than males.

Care, breeding and tankmates

Aquarium Setup: Minimum tank volume of 120 liters (30 gallons). Provide plenty of rocky structures. Benefits greatly from a host anemone but can adapt to large-polyp stony corals.

Diet and Feeding: Omnivorous. Readily accepts frozen brine shrimp, mysis, chopped seafood, marine pellets, flakes, and spirulina or algae-based feeds.

Water Quality: Requires stable marine conditions: temperature 24-28°C (75-82°F), pH 8.1-8.4, specific gravity 1.020-1.025, and KH 8-12. Prefers high water quality.

Compatibility and Tankmates: Territorial towards other clownfish species. Keep with active, robust reef species such as tangs, wrasses, and large damselfishes.

Aquarium Reproduction: Regularly spawns in captivity. The pair deposits adhesive eggs on clean rock surfaces near the host anemone. The male guards the nest.

Risks and Diseases: Exceptionally hardy, but quarantining new specimens is key to avoiding issues with Brooklynella hostilis and marine ich.

Fish profile

Temperament
Semi-aggressivo e territoriale
Diet
Onnivoro (zooplancton, crostacei surgelati, alghe, pellet)
Tank level
All levels
Minimum group
1
Adult size
14 cm
Minimum tank volume
120 L
GH
n/a
KH
8 dKH - 12 dKH
TDS
n/a
Conductivity
n/a
Sex ratio
Singolo o coppia formata
Feeding frequency
1-2 volte al giorno
Bioload
Medium
Flow
Movimento moderato
Reproduction
Deposizione di uova adesive su rocce nei pressi dell'anemone ospite, curate dal maschio.
Compatibility & tankmates
Territoriale. Non ospitare con altri pesci pagliaccio per prevenire scontri mortali.

Ecological Estimates & Biological Models

Trophic level
2.7 ± 0.3 se
Resilience
High (less than 15 months)
Phylogenetic uniqueness (PD50)
0.5
Bayesian Length-Weight
a = 0.02344, b = 2.98
VulnerabilityLow vulnerability (10 / 100)

Image gallery

Licensed images linked to the species or, when marked, to the closest representative taxon.

Related species

Other recommended species with similar care requirements and water parameters.

Last updated: 06/12/2026
Two-banded clownfish (Amphiprion bicinctus) Care Guide & Tank Setup | Atlarium