Betta simplex

A dark red head, pale red body and fins, green-blue gill-cover iridescence and an indistinct chin crossbar.

A dark red head, pale red body and fins, green-blue gill-cover iridescence and an indistinct chin crossbar. Males lack iridescent scales on the body.

Adult length: Up to 6 cm (standard length, without the tail fin)
Water temperature: 20–28 °C
pH: 7–8
Hardness: 3–12 dGH

Natural habitat: Inhabits limestone streams and marshes, including pool margins and vegetation in clear, flowing creeks.

From limestone areas of Thailand; neutral to slightly alkaline water is recommended. Do not make the water strongly acidic as for peat-swamp blackwater bettas.

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Social behaviour and territory

May be kept in pairs or small groups in at least 60×30 cm with cover.

Diet and feeding

Try suitably sized dry food, alternating with live or frozen foods such as Daphnia and brine shrimp. Feed small portions and avoid overfeeding.

Sources