South China Catfish (Silurus meridionalis)

Family: Siluridae

South China Catfish — a Siluridae from China, peaceful; most activity happens after dark. Reaches 85.5–125.4 cm; keep bottom stock light — they share one floor. 21–26 °C.

Care parameters

Water temperature
21–26 °C
pH
6.5–7.5
GH hardness
5–15 dGH
Adult length
85.5–125.4 cm
Minimum tank
500 L
Water layer
Bottom-dwelling
Difficulty
Moderate
Temperament
Peaceful; most activity happens after dark
Origin
China

Species overview

Silurus meridionalis, a member of the family Siluridae, comes from China, where it inhabits slow rivers and lakes. Peaceful; most activity happens after dark and omnivorous scavenger — sinking pellets, frozen and vegetable foods, it grows to 85.5–125.4 cm and adapts well to a properly set-up aquarium in the 21–26 °C range. Other Silurus species in our database include Silurus asotus, Silurus lanzhouensis, Silurus soldatovi.

Native biotope

Habitat
Slow rivers and lakes
Flow
Still to gentle current
Dissolved O₂
Moderate

Aquascape & hardware

Substrate
Sand and mud
Hardscape
Large hiding structures
Plants
Sparse

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
Hard to distinguish
Breeding method
Spawning rarely seen; presumed crevice egg-layer

Frequently asked questions

Is South China Catfish 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 South China Catfish need?

Aim for 21–26 °C. Stable temperate range; 21.0–26.0 °C typical for the family.

How big does South China Catfish get, and what tank size?

Full size is 85.5–125.4 cm. Minimum tank: 500 L, with open swimming space along its bottom-dwelling habits.

What does South China Catfish eat?

Omnivorous scavenger — sinking pellets, frozen and vegetable foods. Feed two small meals a day rather than one large one.

Can South China Catfish live with other fish?

Peaceful; most activity happens after dark; keep bottom stock light — they share one floor. Good company: Other similar-sized bottom fish — Share the floor peaceably. Keep away from Tiny fish that fit in its mouth — Vanish at night.

Where does South China Catfish come from?

Its home waters are China — slow rivers and lakes, with still to gentle current.

How does South China Catfish breed?

In the aquarium: spawning rarely seen; presumed crevice egg-layer. Hard to distinguish.