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Siamese Fighting Fish

siamese fighting fish

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Scientific Name:   Betta splendens      
Min. Tank Size:   10 gallons      
Personality:   Males HIGHLY aggressive to each other      
Temperature:   75-82°F      
pH:   6.5-7.5/5-25°dGH      
Size:   3"      
Diet:   Carnivore      
Breeding:   Egglayer      


Best suited to a species tank; can be kept with Dwarf Corydoras, small Cyprinids, and Otocinclus Catfish.

Siamese Fighting Fish

Known by the scientific name Betta splendens, Siamese Fighting Fish are the most popular species of Betta in the aquarium trade. These fish are native to the rice paddies and shallow waters of Thailand, Laos, Cambodia and Vietnam. Siamese Fighting Fish are naturally fairly dull in coloration, but have been selectively bred to exhibit a variety of vibrant colors as well as various fin types. Popular fin types include crown tail, veil tail, halfmoon and round tail.

Tank Set-up

Male Siamese Fighting Fish are usually larger than females and are notoriously aggressive and territorial. While males should not be kept in pairs or groups, females of the species can be kept with other females. However, it should be noted that males are usually intolerant of females, except during breeding.


These fish thrive best in a well-planted tank that mimics their natural environment. Tanks for Betta splendens should be dimly lit and the water flow should be kept to a minimum. For optimum health and coloration, feed a varied diet consisting of live/frozen foods such as bloodworms, brine shrimp, and a high quality flake/pellet made especially for Bettas.


Betta splendens are a bubble-nesting species - the male of the species builds a bubble nest to hold the eggs after the breeding pair has spawned. Following spawning, the female should be removed from the breeding tank so the male does not become overly aggressive toward her.

Betta Supplies at


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