
Eel loach
An exceptionally slender loach with fine grey-gold pigment.
An unusually long, thin body can show fine dark speckles and a faint lateral stripe on grey to muted gold, with a paler underside. It is not always bright silver. Some adult males develop thicker, longer pectoral rays and a modest forehead prominence.
- Adult length
- About 5 cm (standard length, without the tail fin)
- Water temperature
- 22–29 °C
- pH
- 6–7.5
- Hardness
- 0–8 dGH
- Natural habitat
- Inhabits shallow slow stream reaches, swamps, oxbows and backwaters, hiding in soft mud, sand or silt among leaves and roots.
Keep at 22–29°C, pH 6.0–7.5 and GH 0–8dGH. Reaches 120mm SL.
Appearance and identification
Much more slender than P. oblonga, with grey-gold speckling or a lateral line of pigment instead of a deeper plain-brown body. Close relatives differ in nasal-barbel, cheek-scale and vertebral characters. Eel or silver kuhli trade names alone do not identify it.
Floor and movement space
At least 60×30cm or equivalent, with a group, soft sand, cover and feeding access.
Aquarium environment
A shaded planted layout with gentle flow and soft sand gives cover. Roots and leaf litter should leave accessible feeding spots. Protect small fish from filter intakes, secure escape gaps and maintain surface gas exchange.
Diet and feeding
Target small sinking meals to the bottom and vary them with small live or frozen animal foods, checking individual feeding. Scavenging does not remove the need to feed these loaches.
Same-species behaviour
Keep at least 5–6 with several quiet shared refuges. Check that purchased fish are all the same species.
Compatibility limits
Avoid forceful bottom-feeding competitors and large fish able to swallow such a slender loach. Peaceful, but eggs and fry may not be safe.
Sources
www.seriouslyfish.com ↗ 2026-10-22
www.aquariumglaser.de ↗ 2026-10-22
api.gbif.org ↗ 2026-10-22
