Freshwater
Malay combtail
Belontia hasselti
Osphronemidae, Belontiinae
Facts
Characteristics
- Length
- Up to 20 cm
- Body shape
- Streamlined
Care
- Group
- Missing
- Smallest aquarium
- 192 liters
- Diet
- Missing
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Behavior
- Temperament
- Semi-aggressive
- Swims
- Missing
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Water values
Smallest tank
192 liters120 × 40 × 40 cm · For one fish
Worked out from its length, as we don’t yet know what size tank it should have. Do you? Sign up and tell us in the app.
Try other measures in the appNative
Lives wild in Indonesia, Malaysia, and Thailand.
Videos
The Endangered Fish of Thailand’s Peat Swamps and Forest Streams | EP 2 Betta in the Wild
Rodrigo SilvaMay 29, 2026
More about the species
About the species
Found in primary peat. Bubble nest builder species.
Source: FishBase
Other names
Other scientific names
- Polyacanthus hasselti
- Polycaanthus hasselti
In other languages
- Malaysisk kamhale
- Verkkokampapyrstö
- Java combtail, Sumatra combtail
Articles
All articles
Fin rot and columnaris4 min read
Bacteria that attack the fins, mouth and skin, nearly always after poor water. When water changes are enough, and when more is needed.
Velvet and dropsy4 min read
Velvet is a fast-moving parasite. Dropsy is a sign that something is seriously wrong inside the fish. How to recognize them, and what you can do.
How to set up an Asian aquarium5 min read
Two aquariums from Southeast Asia: calm forest streams and peat swamps with soft, brown water, and fast mountain streams with cool, oxygen-rich water.
How to add new fish4 min read
From the store to the tank: how to get the fish used to your water, why you should add only a few at a time, and what to watch for in the first few days.