Betta – Male
Betta splendens

Care Level




Reef Compatible


Plant Safe


Max Size

Less than 2

Minimum Tank Size




Water Conditions

Neutral (6.2 to 7.8 pH), intermediate water hardness (6 to 18dGH), 65 to 78 degrees Fahrenheit


General: The "Siamese Fighting Fish" (Betta splendens) is a territorial, fish species native to the anoxic (poorly oxygenated) wetlands of Malaysia. Uniquely, the Betta has developed a labyrinth organ which allows it to utilize atmospheric oxygen. The Betta may potentially grow to a length of three inches, and can live up to four years in captivity.

Fecundity: The Betta (Betta splendens) may produce several hundred eggs per clutch. When attempting to breed Betta, it is best to mimic the water chemistry parameters found naturally in Southeast Asia. Ideally, the water hardness should be soft (3-8 dGH), and slightly acidic (5.8-7 pH). Be sure to include an ample amount of floating plants to support the bubble nest reproductive strategy exhibited by Betta.

Preferred Water Chemistry: Slightly acidic (5.5 to 7.2 pH), intermediate water hardness (6 to 12 dGH)

Aquarium Diet (Omnivore): Brine Shrimp, Baby Brine Shrimp, Blackworms, Spirulina, Omnivore Pellet

Dimorphism: The Betta (Betta splendens) male will develop elongated fins. The female will retain her short, round fins. The female will take on a more gravid appearance when ready to reproduce.

Compatibility: The Betta (Betta splendens) are typically compatible with small Tetra, Hatchetfish, Pencilfish, and Corydoras. Avoid putting Betta in a system with small shrimp, or aggressive fin biting fish species. Male Betta should not be kept in the same system. Females may be kept in the same system, but should be kept in groups larger than three.

Betta – Male Photo Gallery

Betta – Male Videos

Author: Aquatics Unlimited