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.

Nước ngọt

Siamese Fighting Fish reference image — Bernard Ladenthin, cc-by, via Wikimedia Commons. Nguồn: Wikimedia Commons.

Điểm nhận dạng

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.

Môi trường sống

Warm, shallow freshwater habitats such as rice paddies, ditches, marshes, floodplains, and slow canals with dense vegetation and low dissolved oxygen.

Ghi chú mồi

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.

Hành vi

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.

Thận trọng

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.

Ghi chú câu cá

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.