Mottled Bichir (Polypterus weeksii)

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Mottled Bichir

Polypterus weeksii 1.jpg
Fathead Bichir

Polypterus weeksii

473 Litres (125 US G.)

45-54 cm (17.7-21.3")




6.5 - 7.5

23 -27 °C (73.4-80.6°F)

6-16 °d

1:1 M:F

Pellet Foods
Flake Foods
Live Foods

8-15 years



Additional names

Fathead Bichir, Mottled Bichir, Week's Bichir

Additional scientific names

Polypterus schoutedeni, Polypterus weeksi

Tank compatibility[edit | edit source]

A relatively peaceful Bichir, however, will eat smaller fish. Should only be kept with robust peaceful fish larger than itself. Will cohabit with other Bichirs.

Behaviour[edit | edit source]

A bottom-dwelling large predatory fish. Only a threat to fish smaller than itself.

Identification[edit | edit source]

This species usually has a very clear distinction between the dark greyish-green dorsal surface and the whitish ventral surface. Several dark bands are present which may fork towards the bottom. The head is relatively large, giving rise to one of the common names of 'fat-headed' Bichir. This species retains external gills much longer than most other Polypterus species. There are 9-11 dorsal finlets.

Pictures[edit | edit source]

External links[edit | edit source]