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💧 Freshwater Vulnerable 🐠 Aquarium 🌡️ Tropical

Pygmy rainbowfish

Melanotaenia pygmaea Allen, 1978
Max Length
5.5 cm
Max Weight
-
Lifespan
-
Trophic Level
2.9
Depth
0–1 m
Climate
Tropical
Resilience
High
Vulnerability
27.00/100
Typical Length
4 cm
Depth Zone
-

📖 Overview

Occurs in fast flowing streams interrupted by frequent cascades or rapids. Usually inhabits the deeper pools, often at the base of waterfalls with very clear water and a primarily solid rock bottom with little or no vegetative cover . Inhabits pools and rivulets on sandstone terraces . Seen in schools containing up to 50 or more individuals . Both sexes can become sexually mature at 2.3 cm SL A popular aquarium species that thrives in captivity .

Scientific Name
Melanotaenia pygmaea
Authority
Allen, 1978
Habitat
Freshwater
Climate
Tropical
IUCN Status
VU
Max Length
5.5 cm
Depth Range
0–1 m
Trophic Level
2.9
Resilience
High
Vulnerability
27.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Physical description for Pygmy rainbowfish is currently being compiled.

🌀 Behaviour

Behavioural data for Pygmy rainbowfish is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

Distinct pairing .

🌍 Habitat & Distribution

Freshwater; benthopelagic; depth range 0 - 1 m. Tropical; 14°S - 16°S West Kimberley district, northwestern Australia.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
2.9±0.4
🐠 Schooling

📐 Morphometrics

Length–Weight Relationship: W = 0.01122 × L3.04 (TL)
Max TL
5.5cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Vulnerable
Assessment Date
2019

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
27.00/100
Low vulnerability
Trophic Level
2.9
Omnivore / Planktivore
Climate Zone
Tropical
Described By
Allen, 1978

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 2 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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