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Betta Fish

Betta splendens
593 views Last updated: November 17, 2025

Overview


Betta fish are well-known for their stunning, flowing fins and vibrant colors. Males are particularly aggressive towards other males of their species, which is how they got the name "Siamese Fighting Fish." Females have shorter fins and are generally less aggressive. They are labyrinth fish, meaning they have a special organ that allows them to breathe air from the water's surface, in addition to using their gills. Origin: Southeast Asia : Thailand (Siam): This is their primary native origin, and they were first domesticated here for fighting purposes, which is why they are often called Siamese Fighting Fish.

Origin: Southeast Asia

Family: Osphronemidae

Physical Characteristics


Maximum Size: 7.00 cm
Temperament: Aggressive
Care Level: Easy
Diet Type: Carnivore

Habitat Requirements


Water Type: Freshwater
Temperature Range: 24.0°C - 27.0°C
pH Range: 6.5 - 7.5
Water Hardness: 3 - 8 dGH
Minimum Tank Size: 19 liters

Care and Feeding


Diet Information:

A high-quality Betta pellet or flake food should be the staple of their diet. Supplement with frozen or live foods like bloodworms, brine shrimp, and daphnia to provide a varied diet and stimulate their hunting instincts.

Care Level: Easy

Breeding


Breeding Difficulty: Easy

Males build a bubble nest at the water's surface to attract a female. After spawning, the male will carefully collect the eggs and place them in the bubble nest. The female should be removed after spawning, as the male will become aggressive towards her. The male will continue to guard and care for the eggs until they hatch.

Compatibility


Aggressive

Male Bettas should not be housed together, as they will fight. They can be housed with other peaceful, non-fin-nipping fish in a larger tank (20+ gallons). Good tank mates include certain types of tetras, Rasboras, and Corydoras.