Betta rubra, also known as the "red betta" or "Banten betta," is a unique species of wild betta fish native to Southeast Asia, specifically Indonesia and parts of Sumatra. Unlike the more common Betta splendens (the familiar Siamese fighting fish), Betta rubra is a mouthbrooder, which means the male incubates the eggs in his mouth until they hatch. This species is popular among aquarists who appreciate its natural beauty and less aggressive nature compared to Betta splendens.
Key Characteristics
- Appearance: They have a subtle but attractive red coloration, usually with iridescent blue-green highlights. The males typically display more vibrant colors, especially during breeding.
- Size: Betta rubra are generally smaller than domestic bettas, reaching about 4-5 cm (1.5-2 inches) in length.
- Temperament: They are less aggressive and more social than Siamese fighting fish, making them suitable for community tanks with compatible species.
- Habitat Requirements: In the wild, they inhabit slow-moving streams and rivers with soft, slightly acidic water, often with plenty of leaf litter and vegetation.
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Water Parameters:
- pH: 5.5 - 7.0
- Temperature: 24-28°C (75-82°F)
- Hardness: Soft to moderately hard water
Betta rubra is considered an endangered species due to habitat loss and collection pressures. Breeding programs in captivity help maintain this species, making it a rewarding choice for enthusiasts who want to contribute to conservation efforts.
