Also known as the Peaceful Betta, they have subdued colors and a calmer temperament compared to other Betta species.
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Also known as the Peaceful Betta, they have subdued colors and a calmer temperament compared to other Betta species.
Betta imbellis is a small, streamlined fish with iridescent blue-green scales and subtle red highlights on the fins. Males are more colorful, especially during breeding. Their fins are short and rounded, making them agile swimmers.
2-3 years
Carnivorous; prefers high-quality Betta pellets or flakes, supplemented with occasional live or frozen foods.
Betta imbellis is perfect for aquarists seeking a peaceful Betta species. Their gentle nature, beautiful colors, and compatibility with other small fish make them ideal for planted or community tanks. They are easy to care for and rewarding to observe.
Easy
10 gallons (38 liters) for a pair or small group
6.0 to 7.5
2–15 dGH
74–80°F (23–27°C)
2.5 inches (6 cm)
Peaceful small rasboras, tetras, Corydoras, shrimp, snails
Large or aggressive fish, fin-nippers, Betta splendens, cichlids
Betta imbellis
Osphronemidae
Thailand, Malaysia, Indonesia (natural habitats: slow-moving streams, rice paddies)
Peaceful, can be kept in pairs or small groups; less aggressive than Betta splendens
Feed a varied diet of live or frozen foods (daphnia, brine shrimp, bloodworms) and micro-pellets. Offer small amounts 1–2 times daily. Supplement with vegetable matter (spirulina flakes) for best health.
Bubble nest builder; male guards eggs and fry; can breed in community tanks with gentle tank mates
Breeding is straightforward: male builds a bubble nest, courtship begins, and eggs are laid and fertilized. Male guards the nest and fry. Can breed in a community tank if other fish are peaceful.
Soft, slightly acidic water (pH 6.0–7.5), temperature 74–80°F, hardness 2–15 dGH. Provide gentle filtration and regular water changes. Floating plants and leaf litter help mimic natural habitat.
Generally hardy, but sensitive to poor water quality. Watch for velvet, ich, and bacterial infections. Stress from overcrowding or aggressive tank mates can lead to illness.
Generally peaceful and can be kept with other non-aggressive fish species in a community tank.
Betta imbellis is calm and social, especially in planted tanks with hiding spots. Males may display to each other but rarely fight. They interact with tank mates and explore their environment.
Betta imbellis, the Peaceful Betta, offers a refreshing alternative to the aggressive Betta splendens. With their tranquil temperament and stunning iridescence, they thrive in well-maintained, planted aquariums. Provide soft water, gentle tank mates, and a varied diet for a healthy, vibrant display. Their social behavior and ease of breeding make them a favorite among Betta enthusiasts and beginners alike.