Crescent Betta

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Betta imbellis - (Ladiges, 1975)
Crescent Betta

Male in full, iridescent breeding coloration.


An interesting member of the Betta genus often seen with blue coloration and a red "crescent" on the edge of the tail (not apparent in specimen shown).

Family: Osphronemidae

Other common name(s):

Native range:

Habitat: Rice paddies and lowland swampy areas.

Maximum length: 6 cm (2 in)

Minimum aquarium size: 7.6 L (2 gal)

Water: Freshwater 24 °C (75 °F) - 28 °C (82 °F)

General swimming level: All levels.


Omnivore. Care as for Betta splendens.


Bubblenest builder. After spawning embraces, eggs sink toward bottom and are gathered up by the male (or by both sexes) and blown up into the mass of sticky bubbles to hatch.

Reference: 101 Best Tropical Fishes
Image credit: JJ
Text credit: KW

SubFamily: Macropodusinae