Parosphromenus sumatranus

A conspicuous black eyespot marks the rear dorsal fin, while the tail is relatively uniform in color. May adopt a head-up posture during courtship.

Needs very soft, acidic water.

Social behaviour and territory

Does not form tight schools. Pairs can be used for breeding; groups need caves and cover. Watch nest guarding and subordinate fish.

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

Sources