Wrestling Halfbeak
Dermogenys pusilla
Also known as: Malayan Halfbeak
Unusual surface-dwelling livebearer with an extended lower jaw. Males 'wrestle' by locking jaws in territorial disputes.
Tank Size
15 gal
minimum (20+ preferred)
Temperature
75–82°F
24–28°C
pH Range
7–8
water acidity
Max Size
2.5"
6.3 cm
Lifespan
3–5 years
typical in captivity
Swim Level
Top
preferred zone
Care Notes
Males are aggressive toward each other — keep one male or provide lots of space. Strict surface dweller that needs floating plants. Easily startled and can injure their delicate jaw.
Feeding
Small floating foods, frozen bloodworms, fruit flies, and crushed flakes at the surface.
Compatible Tank Mates
None identified.
Use Caution With
Incompatible With
Check Compatibility
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