Monday,26 July 2021, 4 : 17 PM

Chaetobranchus flavescens

Chaetobranchus flavescens
Image Credit: wikipedia


Chaetobranchus flavescens is a large sized fish with a standard length of 8" and total length of 10.5 8".


Chaetobranchus flavescens was described by Heckel in 1840, and was named as Acara flavescens, currently now it is member of genus Chaetobranchus.


Chaetobranchus flavescens is a plankton feeder occurring mostly in swamps or flooded grounds of coastal zones, either in turbid or clear stagnant water

Distribution & Habitat

Chaetobranchus flavescens is found in South America: Amazon River basin, in Peru and Brazil; Orinoco River basin in Venezuela (Rio Apure); rivers of Guyana, Suriname, French Guiana, and Amapá (Brazil).

Sexual Dimorphism


Chaetobranchopsis orbicularis possesses very long and very fine branchial arch's which allow it to filter micro organism-rich waters of the flooded savannas and swamps which are its preferred habitats.

Keeping in Aquarium

Tank Size:

Not much information is available on its being kept in aquariums. However as it is a large fish a tank of about 500 lit can be used.

Tank Mates:

Although it is peaceful fish with mild aggression towards its own species, it should be kept in a species only tank due to its unique diet habits.


Males are larger than females, attaining maturity between 17 and 22 cm. Reproduction takes place during the rainy season.

Species Snapshot

Species Card

Particulars Details
Scientific Name Chaetobranchus flavescens
Common Name Combtail Basketmouth
Genus Chaetobranchus
Subfamily Astronotinae
Geographical Origin Amazon River basin
Diet Plankton Feeder
Gender Differences Mono morphic
Breeding Substrate Spawner
Temperament Peaceful
Con Specific Temperament Mildly Aggressive
Water hardness Soft, ph range: 6-7, dh Range: 1-15
Difficulty Level in Aquariums

Morphometric Data

Particulars Details
Total Length(inches)
Standard Length(inches)

Measurements as % of Total Length

Particulars Details
Body Depth  %
Head length  %
Pre Dorsal length  %
Pre Pectoral length  %
Pre Anal length  %
Pre Pelvic length  %
Caudal Peduncle Depth  %
Caudal Peduncle Length  %
Fork length  %
Length of Last Dorsal Fin Spine  %
Pectoral Fin Length  %
Pelvic Fin Length  %

Measurements as % of Head Length

Particulars Details
Head Width  %
Snout length  %
Eye diameter  %
Pre Orbital Length  %
Inter Orbital Width  %
Pre Orbital Depth  %

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