New 🐟 Mercury Safety Guide & Omega-3 Rankings Updated for 2026. View Omega-3 Rankings →

🌊 Marine Least Concern 🐠 Aquarium 🌡️ Tropical

Kupang cardinalfish

Ostorhinchus wassinki Bleeker, 1861
Max Length
7 cm
Max Weight
-
Lifespan
-
Trophic Level
3.4
Depth
0–22 m
Climate
Tropical
Resilience
High
Vulnerability
11.00/100
Typical Length
-
Depth Zone
reef

📖 Overview

Inhabits coral reef . Solitary or in groups, adults in pairs. Also found in sheltered rocky reefs in 2-15 m, often in silty conditions (Ref 90102).

Scientific Name
Ostorhinchus wassinki
Authority
Bleeker, 1861
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
7 cm
Depth Range
0–22 m
Trophic Level
3.4
Resilience
High
Vulnerability
11.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 8; Dorsal soft rays (total): 9; Anal spines: 2; Anal soft rays: 8. : elongated; Cross section: compressed.

🌀 Behaviour

Behavioural data for Kupang cardinalfish is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

👄 Mouth Brooder

Mouthbrooders . Distinct pairing during courtship and spawning .

🌍 Habitat & Distribution

Marine; reef-associated; depth range 0 - 22 m , usually 2 - 15 m . Tropical Central Pacific: Malaysia and Philippines to Australia and Papua New Guinea.

🌿 Ecology

Zone Preferences
🌊 Marine 🪸 Reef Associated
Trophic Level
3.4±0.4
🧍 Solitary

📐 Morphometrics

Length–Weight Relationship: W = 0.00955 × L3.2 (TL)
Max TL
7cm
Dorsal Spines
8
Dorsal Rays
9
Anal Spines
2
Anal Rays
8

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2009

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
11.00/100
Low vulnerability
Trophic Level
3.4
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Bleeker, 1861

👥 Community & Contribute

Aquareap Community Observations
0 Observations logged on Aquareap

No observations yet - be the first to log one!

View all observations for Kupang cardinalfish ↗
Suggest an Edit

Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.

Link to a scientific paper, FishBase, or other authoritative source
Report an Issue

Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.