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Bichir (Polypterus senegalus)
Photo: Mattia Nocciola · CC BY-SA 4.0 via Wikimedia Commons

Bichir

Polypterus senegalus · Polypteridae

Also known as Senegal bichir, Dinosaur eel

Intermediate

A prehistoric-looking air-breather that hunts at night; hardy but a determined escape artist.

In short: A bichir needs at least 300 L (79 US gal), water at 24–29 °C (75–84 °F) and pH 6.5–8. It is semi-aggressive, usually kept singly, and rated intermediate to keep.

Updated

Minimum tank
300 L (79 US gal)
Temperature
24–29 °C (75–84 °F)
pH
6.5–8
Adult size
35 cm (13.8 in)
Group size
1+

Care requirements

Minimum tank volume
300 L (79 US gal)
Temperature
24–29 °C (75–84 °F)
pH
6.5–8
Hardness
4–22 dGH
Lifespan
10–20 years
Diet
Carnivore — frozen prawn, mussel, earthworm, sinking carnivore pellets.
Care level
Intermediate

Origin & habitat

Native region
West and Central Africa
Water type
Freshwater
Biotope
Muddy, weedy river margins
Natural conditions
Long footprint, sand, caves, a tight lid and a gap of air to breathe.

Behaviour & stocking

Temperament
Semi-aggressive
Minimum group
1 fish
Swims
Bottom
Good tank mates
Large characins
Big cichlids
Large plecos
Avoid
Small fish
Open-topped tanks

Breeding & difficulty

Breeding difficulty
Advanced
Sexing
Males have a broader, thicker anal fin.
Notes
Rarely spawned in captivity.
Common ailments
Escaping the tank
Internal parasites
Ich
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