科: Osphronemidae
镰斗鱼为Osphronemidae鱼类。成体约 2.6–3.9 cm，适宜水温 24–28 °C。
Betta falx is a Osphronemidae. In the aquarium it stays territorial. Plan on 2.6–3.9 cm of adult fish at 24–28 °C. Related profiles: Betta imbellis, Betta smaragdina, Betta splendens.
饲养难度：中等。Territorial; one male per tank。
建议水温 24–28 °C，24.0–28.0 °C typical for the genus；Heater required; stable warmth。
成体约 2.6–3.9 cm，属Bottom-dwelling鱼类，建议至少 25 L 缸体。
Carnivore; prepared foods plus frozen or live。它在Soft sand with leaf litter上自然觅食，投喂可少量多次。
Territorial; one male per tank。推荐混养：Similar-sized peaceful community fish — Similar size and water needs。避免与Much smaller fish — May outcompete or bully tiny tankmates同缸。
生活在Still waters, rice paddies and slow streams，对溶氧要求一般。
该物种会跳缸——缸盖务必盖紧，换水时尤其注意。
Bubble-nest builder with paternal care。Males larger with longer fins。