fish · Osphronemidae
Dusky betta
Betta fusca
Wild range: Southeast Asia (Asia)
At a glance: Dusky betta care
Compiled reference information. Review the care notes and original sources below.
What temperature is listed for Dusky betta?
The compiled profile lists 22.0–27.2 °C for Dusky betta (Betta fusca). Check the original sources below for context and differing recommendations.
What tank size is listed for Dusky betta?
The profile lists a minimum tank volume of 3.0 US gallons (11.4 liters). Volume alone does not establish suitability; consider dimensions, group size and other inhabitants alongside the full care notes.
What pH is listed for Dusky betta?
The compiled profile lists a pH of 6.0–7.0. Review the cited care sources alongside the other water parameters in this profile.
Natural habitat
Betta fusca is a Sumatran fighting fish of lowland forest waters and a member of the mouthbrooding Betta pugnax group.
Where they are found
Known mainly from Sumatra, Indonesia; Catalog of Fishes also lists Malaysia.
Aquarium care
To maintain a healthy aquarium for Betta Fish, it is crucial to keep the tank environment stable. Regular water changes (15-25% weekly) are important to ensure water quality. Testing for ammonia, nitrite, nitrate, and pH levels helps maintain the right conditions. Live plants should be included for enrichment and to mimic their natural habitat, and filtration should be gentle to prevent too much current, which can stress the Betta.
Feeding
Feed Bettas high-quality floating pellets or flakes and occasional frozen foods, like brine shrimp, 2-3 times per week. Be careful not to overfeed, as this can lead to health issues. Their natural diet consists of small insects and crustaceans.
Compatibility
While Betta males are known for their aggressiveness, especially towards other males, they can coexist with certain community fish provided they are carefully selected. It's essential to monitor interactions, and having plenty of plants and decorations can help create territories.
Breeding
A paternal mouthbrooder. The male incubates the eggs in his mouth until the fry are free-swimming. Leave the brooding male undisturbed in a quiet, covered tank.
Sources
Compiled from multiple independent care sheets — not copied from a single site.