Black Kuhli Loach (Pangio oblonga)

Family: Cobitidae

Black Kuhli Loach — a Cobitidae from Southeast Asia, peaceful, sociable and slightly nocturnal. Reaches 9–13.2 cm; sociable; keep 4–6 so night-time activity stays confident. 24–30 °C.

Care parameters

Water temperature
24–30 °C
pH
5.5–6.5
GH hardness
5–15 dGH
Adult length
9–13.2 cm
Minimum tank
209 L
Water layer
Bottom-dwelling
Difficulty
Moderate
Temperament
Peaceful, sociable and slightly nocturnal
Origin
Southeast Asia

Species overview

Pangio oblonga, a member of the family Cobitidae, comes from Southeast Asia, where it inhabits sandy stretches of slow rivers. Peaceful, sociable and slightly nocturnal and omnivore that appreciates live or frozen treats, it grows to 9–13.2 cm and adapts well to a properly set-up aquarium in the 24–30 °C range. Other Pangio species in our database include Pangio kuhlii, Pangio semicincta, Pangio shelfordii.

Native biotope

Habitat
Sandy stretches of slow rivers
Flow
Gentle current
Dissolved O₂
Tolerates moderate oxygen levels

Aquascape & hardware

Substrate
Fine sand for burrowing
Hardscape
Smooth stones and driftwood caves
Plants
Low-light tolerant plants

Temperament, diet & tankmates

Schooling
Sociable; keep 4–6 so night-time activity stays confident
Diet
Omnivore that appreciates live or frozen treats
Recommended tankmates
  • Other peaceful bottom fish — Share the lower water without conflict
Avoid keeping with
  • Boisterous feeders — Outcompete slow, nocturnal eaters

Breeding & notes

Sexual dimorphism
Females noticeably plumper when mature
Breeding method
Scatters eggs among fine plants; no aftercare

Frequently asked questions

Is Black Kuhli Loach easy to keep?

Difficulty: moderate. Peaceful, sociable and slightly nocturnal. Sociable; keep 4–6 so night-time activity stays confident.

What temperature and water chemistry does Black Kuhli Loach need?

Hold 24–30 °C and keep it stable — 24.0–30.0 °C typical for the genus. Room temperature stable range.

How big does Black Kuhli Loach get, and what tank size?

Full size is 9–13.2 cm. Minimum tank: 209 L, with open swimming space along its bottom-dwelling habits.

What does Black Kuhli Loach eat?

Omnivore that appreciates live or frozen treats. Feed two small meals a day rather than one large one.

Can Black Kuhli Loach live with other fish?

Peaceful, sociable and slightly nocturnal; sociable; keep 4–6 so night-time activity stays confident. Good company: Other peaceful bottom fish — Share the lower water without conflict. Keep away from Boisterous feeders — Outcompete slow, nocturnal eaters.

Where does Black Kuhli Loach come from?

Comes from Southeast Asia: sandy stretches of slow rivers. Expect gentle current and tolerates moderate oxygen levels.

How does Black Kuhli Loach breed?

In the aquarium: scatters eggs among fine plants; no aftercare. Females noticeably plumper when mature.