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Fish Freshwater Care: medium Peaceful

Pangio cuneovirgata

Pangio cuneovirgata
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Other names: Kuhli, Coolie loach, Acanthophthalmus cuneovirgatus
Group: Loaches and bottom dwellers · Family: Cobitidae · Origin: Southeast Asia — southern Thailand, the western Malay Peninsula, Sumatra and western Java

One of the smallest kuhlis, staying at 4 cm, with wedge-shaped dark saddles on its back. It suits a nano aquarium; it needs soft, acidic water, fine sand, dim light and a large group.

Will it suit my tank?

Last updated October 16, 2026

Temperature
22–26°C
pH
5–7
Hardness
1–6 dGH
Adult size
4 cm
Minimum tank size
40 liters
Social structure
School
Group
at least 6, ideally 10+
Swimming zone
Bottom
Diet
Omnivore
Breeding
Other

Water parameters

Temperature22–26°C
pH5–7
General hardness (GH)1–6 dGH
Recommended range
May escape, needs a lid Considered shrimp safe Suitable for planted tanks

Overview

October 16, 2026 · Suggest an edit

Pangio cuneovirgata is one of the smallest kuhlis; adults reach about 4 cm. The upper half of its yellowish to light brown body carries 7–13 wedge-shaped dark saddles, and the belly is pale. It lives among leaf litter in forest streams and peat swamps. Thanks to its small size it suits nano and biotope aquariums, but it has a strong need for soft, acidic water.

Tank Setup

October 16, 2026 · Suggest an edit
  • At least 40 liters and 45 cm of length for a group of 8–10.
  • 22–26°C, pH 5–7, very soft water (GH 1–6).
  • Fine, soft sand; dim light, roots, dried leaves, java moss and cryptocorynes.
  • The lid and filter intake must always be covered; it slips through very small gaps.

Diet

October 16, 2026 · Suggest an edit

It sifts the sand and eats small insect larvae and crustaceans. Offer small sinking granules, frozen or live daphnia, brine shrimp and fine bloodworms.

Behavior and Compatibility

October 16, 2026 · Suggest an edit

Extremely peaceful and shy; it shows itself more in a large group. When kept with large, active fish it may not find food.

Good companions: Boraras and small rasboras, small tetras, dwarf corydoras, shrimp.

Avoid: any fish that could swallow it, greedy and fast bottom dwellers, botias.

A short profile for this species

The Pangio cuneovirgata page has the basics, but the sections below have not been written yet. If you keep this species, write a section from your own experience; it will be published under your name after editor approval.

Tank mates

This list is calculated automatically from the species profile and grows as new species are added to the catalog. Try it in the planner for a definite answer.

Usually compatible

Should not be kept together

Hobbyist notes

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Change history and contributors
  1. Page created · October 16, 2026