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Stripe-tailed Dottyback

Pseudochromis caudalis

Dottyback with a characteristic dark transverse stripe on its caudal fin, native to the Persian Gulf.

Family
Pseudochromidae
Origin
Oceano Indiano occidentale: dal Golfo Persico e Golfo di Oman fino alle coste del Pakistan.
Origin
Tropical oceans and reefsExtra-Amazon South AmericaEurope, Mediterranean, and West AsiaSouth and Southeast Asia
Tank use
Used in 0 tanks

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Species challenges
Water Temperature

22 °C - 26 °C

pH Value

8.1 - 8.4

Water type

Marine

Tank level

Bottom and middle

Adult size

10 cm

Species description

Geographical Origin and Habitat: Western Indian Ocean: Persian Gulf and Gulf of Oman to the coasts of Pakistan. Inhabits coral reefs, rocky crevices, and shallow caves at depths between 1 and 25 meters.

Taxonomy and Morphology: Belongs to the family Pseudochromidae, genus Pseudochromis. Features a slender, flexible body, large eyes, and a mouth with small sharp teeth. Grows to 10.0 cm.

Social Behavior: Territorial and bold, highly defensive of its chosen cave. Can be aggressive toward fish of similar shape or size.

Coloration and Sexual Dimorphism: The name 'caudalis' highlights the unique and geometric markings on its tail fin. Males are typically larger and may exhibit more intense coloration, particularly when breeding.

Care, breeding and tankmates

Aquarium Setup: Requires a tank of at least 100.0 liters with plenty of live rock arranged to create numerous caves and dark tunnels. A tight-fitting lid is recommended.

Diet and Feeding: Carnivorous. Feeds on small crustaceans and worms. Provide a variety of frozen foods such as mysis, brine shrimp, and high-quality protein pellets.

Water Quality: Maintain stable marine conditions: temperature 22.0-26.0 °C, pH 8.1-8.4, specific gravity 1.020-1.025.

Compatibility and Cohabitation: May behave aggressively toward small ornamental shrimps, tubeworms, and passive fish. Best kept singly without other dottybacks.

Aquarium Breeding: Protogynous hermaphrodite. Lays spherical egg masses inside a cave, which are actively guarded and aerated by the male.

Risks and Diseases: Very hardy and disease-resistant. However, severe territorial fights can lead to secondary bacterial infections.

Fish profile

Temperament
Semi-aggressive
Diet
Carnivorous (crustaceans, frozen brine shrimp, mysis, chopped krill)
Tank level
Bottom and middle
Minimum group
1
Adult size
10 cm
Minimum tank volume
100 L
GH
n/a
KH
n/a
TDS
n/a
Conductivity
n/a
Sex ratio
Singolo
Feeding frequency
Due volte al giorno
Bioload
Low
Flow
Moderate
Jump risk
Covered tank required
Reproduction
Ermafrodita bidirezionale; riproduzione molto complessa da ottenere in vasca.
Compatibility & tankmates
Estremamente territoriale; inserire in vasche stabili con pesci robusti.

Ecological Estimates & Biological Models

Trophic level
3.6 ± 0.5 se
Resilience
High (less than 15 months)
Phylogenetic uniqueness (PD50)
0.5
Bayesian Length-Weight
a = 0.00501, b = 3.1
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: 06/13/2026