Parosphromenus nagyi

During breeding displays, the body is pale above and dark below, with continuous blue bands on the unpaired fins. This coloration is not shown in every condition.

Adult length: Up to 4 cm
Water temperature: 20–24 °C
pH: 4.5–5

Natural habitat: Inhabits peat swamp forest and deeper parts of creeks.

Needs extremely soft, acidic water.

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Social behaviour and territory

Does not form tight schools. Pairs may be used for breeding; groups need caves and visual barriers. Watch nest defenders and subordinate fish.

Diet and feeding

Offer tiny, suitably sized live foods. Dry food is unreliably accepted; confirm the fish actually eat.

Sources

media.eaza.net ↗ 2026-10-23