Reddish Bullhead (Liobagrus reinii)

Family: Amblycipitidae

Reddish Bullhead — a Amblycipitidae from Japan, peaceful; most activity happens after dark. Reaches 7–10.2 cm; keep bottom stock light — they share one floor. 20–26 °C.

Care parameters

Water temperature
20–26 °C
pH
6.5–7.5
GH hardness
5–15 dGH
Adult length
7–10.2 cm
Minimum tank
125 L
Water layer
Bottom-dwelling
Difficulty
Moderate
Temperament
Peaceful; most activity happens after dark
Origin
Japan

Species overview

A Amblycipitidae species native to Japan: Liobagrus reinii lives bottom-dwelling over warm freshwater streams and lakes. Peaceful; most activity happens after dark. Adults reach 7–10.2 cm. It is one of the aquarium-kept Liobagrus species we profile, alongside Liobagrus anguillicauda, Liobagrus marginatus, Liobagrus mediadiposalis.

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
Keep bottom stock light — they share one floor
Diet
Omnivorous scavenger — sinking pellets, frozen and vegetable foods
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
Spawning rarely seen; presumed crevice egg-layer

Frequently asked questions

Is Reddish Bullhead easy to keep?

Intermediate difficulty. Peaceful; most activity happens after dark; keep bottom stock light — they share one floor.

What temperature and water chemistry does Reddish Bullhead need?

Hold 20–26 °C and keep it stable — 20–26 °C general community range. Stable temperature matching the species origin.

How big does Reddish Bullhead get, and what tank size?

Expect 7–10.2 cm as an adult, living bottom-dwelling. A 125 L tank or larger gives it room.

What does Reddish Bullhead eat?

Omnivorous scavenger — sinking pellets, frozen and vegetable foods. Vary the menu — quality flakes or pellets plus frozen or live foods.

Can Reddish Bullhead live with other fish?

Yes, with care. Peaceful; most activity happens after dark — 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 Reddish Bullhead come from?

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

Does Reddish Bullhead jump?

Low escape risk, but a lid is cheap insurance.

How does Reddish Bullhead breed?

In the aquarium: spawning rarely seen; presumed crevice egg-layer. Subtle external differences.