Siamese Fighting Fish
Betta splendens
Siamese Fighting Fish (Betta splendens) is a small labyrinth fish native to shallow waters of the lower Mekong basin in Thailand, Cambodia, Laos, and Vietnam. It is best known for aggressive territorial behavior and the long-finned males seen in the aquarium trade.
_female_orange.JPG){kind=link}
Identification points
- Long-finned males often show flowing caudal, dorsal, and anal fins in domestic strains.
- Body is slender and laterally compressed with a small upturned mouth.
- Wild-type fish are typically drab brown/green with iridescent blue-green highlights and short fins in females and juveniles.
Habitat
Warm, shallow freshwater habitats such as rice paddies, ditches, marshes, floodplains, and slow canals with dense vegetation and low dissolved oxygen.
Bait notes
Not a standard sport fish and is rarely targeted by anglers. In captivity it readily takes tiny floating foods, mosquito larvae, and small live or frozen invertebrates; fishing for wild fish is generally inappropriate.
Behavior
Males are highly territorial and flare, chase, and bite rivals. They feed mainly on small aquatic insects, insect larvae, and zooplankton near the surface and among cover.
Caution
Males can inflict nips on fins and skin; avoid handling them bare-handed if they are stressed or breeding. Local collection rules and animal-welfare restrictions may apply; not a food fish.
Fishing notes
No practical recreational angling fishery; when handled for capture or study, use very fine nets and avoid placing multiple males together. For aquarium capture, small traps or dip nets work better than hooks.