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💧 Freshwater Least Concern 🐠 Aquarium 🌡️ Tropical

Threadfin acara

Acarichthys heckelii Müller & Troschel, 1849
Max Length
19.5 cm
Max Weight
-
Lifespan
-
Trophic Level
2.7
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
27.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Threadfin acara (Acarichthys heckelii), first described by Müller & Troschel, 1849 is a medium-sized fish in the family Cichlidae (order Cichliformes). Adults typically reach 19.50 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Tropical waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus. On the IUCN Red List, it is classified as Least Concern.The species is kept in the aquarium hobby. Care requirements and behaviour align broadly with other Cichlidae kept in the hobby.

Scientific Name
Acarichthys heckelii
Authority
Müller & Troschel, 1849
Habitat
Freshwater
Climate
Tropical
IUCN Status
LC
Max Length
19.5 cm
Trophic Level
2.7
Resilience
High
Vulnerability
27.00/100
Migration
Potamodromous
Water Temp
23–26 °C
Salinity
0–0.5 ppt

🔬 Taxonomy

🐟 Physical Description

Physical description for Threadfin acara is currently being compiled.

🌀 Behaviour

Behavioural data for Threadfin acara is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

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

A hole nester.

🌍 Habitat & Distribution

Freshwater; benthopelagic; dH range: 18 - ?; potamodromous . Tropical; 23°C - 26°C South America: along mainstream Amazon River in Peru, Colombia, and Brazil, including lower parts of the Putumayo, Trombetas, Negro, and Xingu rivers; lower Tocantins and Capim rivers; Branco River (Amazonas basin) in Brazil and Guyana, and the Essequibo River in Guyana.

🌿 Ecology

Zone Preferences
💧 Freshwater
Migration
Potamodromous
Trophic Level
2.7±0.28

📐 Morphometrics

Length–Weight Relationship: W = 0.02951 × L2.97 (TL)
Max TL
19.5cm

🌡️ Water Parameters & Tolerance

Temperature Range
23–26°C
Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2020

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
27.00/100
Low vulnerability
Trophic Level
2.7
Omnivore / Planktivore
Climate Zone
Tropical
Described By
Müller & Troschel, 1849

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
Acara heckelii Müller & Troschel 1849 Synonym
Acara subocularis Cope 1878 Synonym
Geophagus thayeri Steindachner 1875 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 6 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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View all observations for Threadfin acara ↗
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