Cranoglanis bouderius

Family: Cranoglanididae

Cranoglanis bouderius — a Cranoglanididae from southern China, calm and unobtrusive by day, busy by night. Reaches 32.2–47.3 cm; pairs for the small species; solitaries for the big. 20–26 °C.

Care parameters

Water temperature
20–26 °C
pH
6.5–7.5
GH hardness
5–15 dGH
Adult length
32.2–47.3 cm
Minimum tank
500 L
Water layer
Bottom-dwelling
Difficulty
Moderate
Temperament
Calm and unobtrusive by day, busy by night
Origin
southern China

Species overview

A Cranoglanididae species native to southern China: Cranoglanis bouderius lives bottom-dwelling over warm freshwater streams and lakes. Calm and unobtrusive by day, busy by night. Adults reach 32.2–47.3 cm. It is one of the aquarium-kept Cranoglanis species we profile, alongside Cranoglanis henrici, Cranoglanis multiradiatus.

Native biotope

Habitat
Warm freshwater streams and lakes
Flow
Still to gentle current
Dissolved O₂
Moderate oxygen levels

Aquascape & hardware

Substrate
Fine sand and gravel
Hardscape
Driftwood and smooth stones
Plants
Hardy common aquarium plants

Temperament, diet & tankmates

Schooling
Pairs for the small species; solitaries for the big
Diet
Eats anything that sinks; balance protein and greens
Recommended tankmates
  • Other similar-sized bottom fish — Share the floor peaceably
Avoid keeping with
  • Tiny fish that fit in its mouth — Vanish at night

Breeding & notes

Sexual dimorphism
Subtle external differences
Breeding method
Cave or pit spawner; guarding varies by species

Frequently asked questions

Is Cranoglanis bouderius easy to keep?

Intermediate difficulty. Calm and unobtrusive by day, busy by night; pairs for the small species; solitaries for the big.

What temperature and water chemistry does Cranoglanis bouderius need?

Aim for 20–26 °C. Stable temperature matching the species origin; 20–26 °C general community range.

How big does Cranoglanis bouderius get, and what tank size?

Full size is 32.2–47.3 cm. Minimum tank: 500 L, with open swimming space along its bottom-dwelling habits.

What does Cranoglanis bouderius eat?

Eats anything that sinks; balance protein and greens. Vary the menu — quality flakes or pellets plus frozen or live foods.

Can Cranoglanis bouderius live with other fish?

Yes, with care. Calm and unobtrusive by day, busy by night — pair it with Other similar-sized bottom fish — Share the floor peaceably and skip Tiny fish that fit in its mouth — Vanish at night.

Where does Cranoglanis bouderius come from?

Native to southern China, where it lives in warm freshwater streams and lakes. Still to gentle current; Moderate oxygen levels.

Does Cranoglanis bouderius jump?

Jumping is not a known issue; cover the tank anyway during water changes.

How does Cranoglanis bouderius breed?

Cave or pit spawner; guarding varies by species. Subtle external differences.