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💧 Freshwater Least Concern 🐠 Aquarium 🌡️ Tropical

Threadfin cichlid

Petrochromis trewavasae Poll, 1948
Max Length
18 cm
Max Weight
-
Lifespan
-
Trophic Level
2.1
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
22.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Lives in the shallow, rocky habitat; extremely shy; usually found in groups; feeds on algae and has long digestive tract . Feeds by scraping rock biocover . Females brood their young in the mouth .

Scientific Name
Petrochromis trewavasae
Authority
Poll, 1948
Habitat
Freshwater
Climate
Tropical
IUCN Status
LC
Max Length
18 cm
Trophic Level
2.1
Resilience
High
Vulnerability
22.00/100
Water Temp
23–25 °C
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Physical description for Threadfin cichlid is currently being compiled.

🌀 Behaviour

Behavioural data for Threadfin cichlid is currently being reviewed.

🦐 Diet

algae
aquatic plants
detritus

🥚 Reproduction

🐣 Oviparous 👄 Mouth Brooder 🛡️ Egg Guarder
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

Larvae of up to 3.17 cm TL are mouthbrooded by female parent 14.3 cm SL long .

🌍 Habitat & Distribution

Freshwater; benthopelagic; pH range: 7.5 - 8.5; dH range: 10 - ?. Tropical; 23°C - 25°C ; 7°S - 9°S endemic to Lake Tanganyika, restricted to the southwestern part of the lake (Ref.

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
2.1±0.1
Food Items

algae and has long digestive tract (Ref

📐 Morphometrics

Length–Weight Relationship: W = 0.01862 × L3.02 (TL)
Max TL
18cm

🌡️ Water Parameters & Tolerance

Temperature Range
23–25°C
pH Range
7.5–8.5
Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2025

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
22.00/100
Low vulnerability
Trophic Level
2.1
Omnivore / Planktivore
Climate Zone
Tropical
Described By
Poll, 1948

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Threadfin Cichlid
🇫🇮Finnish tähtikivikkohautoja

Scientific Synonyms

Scientific Name Author Year Status
Perissodus trewavasae Poll 1948 Synonym
Petrochromis trewavasae trewavasae Poll 1948 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 31 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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View all observations for Threadfin cichlid ↗
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