Peacock gudgeon

Tateurndina ocellicauda

Blue-red markings, yellow fin edges and a tail-base eyespot; often hovers above cover.

An adult male shows red markings on a blue body, yellow fin margins and a dark eyespot at the tail base. Older males develop a higher forehead.

Adult length: Up to 7.5 cm (standard length, without the tail fin)
Water temperature: 22–26 °C
Lifespan: 4–5 years
pH: 6.5–7.5
Hardness: 5–10 dGH

Natural habitat: Inhabits rivers and ponds, commonly rainforest streams, schooling just above the bottom.

Fin-nipping can make delicate, long-finned companions unsuitable. Provide a secure cover and clean water with gentle flow.

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Appearance and identification

This New Guinea sleeper often hovers near cover. Compare its blue-red pattern and eyespot with the earthy body and blue dorsal band of the desert goby.

Floor and movement space

Use plants, wood and caves while leaving swimming room. A 45 × 30 cm base suits two adult pairs.

Aquarium environment

Plant cover can support confident activity; leave cave entrances accessible.

Diet and feeding

Offer appropriately sized prepared food and varied small frozen or live foods, checking that every fish feeds.

Same-species behaviour

Expect displays and competition around shelters. Break sightlines and watch subordinate fish.

Compatibility limits

Assess size, feeding competition and fin length individually.

Sources