Giant betta - Betta anabatoides

Scientific name: Betta anabatoides

Common name: Giant betta

Family: Osphronemidae

Usual size in fish tanks: 10 - 12 cm (3.94 - 4.72 inch)

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Recommended pH range for the species: 4.5 - 7

Recommended water hardness (dGH): 0 - 12°N (0 - 214.29ppm)

0°C 32°F30°C 86°F

Recommended temperature: 25 - 30 °C (77 - 86°F)

The way how these fish reproduce: Spawning

Where the species comes from: South Asia

Temperament to its own species: peaceful

Temperament toward other fish species: peaceful

Usual place in the tank: Middle levels

Origin

The Giant Betta (Betta anabatoides) is native to Southeast Asia, specifically Singapore, Sumatra, and Borneo. These fish inhabit slow-moving, acidic waters in forested areas, where leaf litter and organic material create a soft, low-flow environment. Replicating these conditions in an aquarium, with subdued lighting and plenty of cover, will help the Giant Betta feel at home.

Lifespan

With proper care, Betta anabatoides can live for approximately 3-5 years in captivity. To maximize their lifespan, it is essential to maintain high water quality, a suitable diet, and a peaceful tank environment.

Short Description

The Giant Betta is a peaceful, visually striking fish that can reach up to 12 cm (4.72 inches) in length, making it one of the larger Betta species. Unlike the popular Betta splendens, the Giant Betta is relatively calm and can coexist with other peaceful species if given enough space. They thrive in a well-planted tank with gentle water flow, soft, slightly acidic water, and ample hiding spots. Due to their size, they require a larger aquarium, preferably 40 liters (10 gallons) or more per fish. They are somewhat sensitive to water quality, so regular water changes and an effective filtration system are essential. Avoid keeping them in overcrowded tanks, as they are prone to stress and digestive issues, including bloat. Their sensitivity to poor water quality and susceptibility to parasites means they are better suited for experienced aquarists who can provide consistent care.

Food and Feeding

The Giant Betta is carnivorous and will accept a variety of live or frozen foods. While they may eat high-quality flakes, they prefer more protein-rich foods like bloodworms, brine shrimp, daphnia, and white worms. Offering small, meaty foods can help prevent digestive issues, as these foods are easier to digest and help keep their digestive tract clear. Feed them once or twice a day, but avoid overfeeding, as they are prone to bloating. A varied diet with small amounts of live or frozen food ensures balanced nutrition and keeps them active and healthy.

Sexing

Sexing Betta anabatoides is generally straightforward. Males display more vivid coloration than females, with a distinct yellow tint on their anal fin. Males also tend to be slightly larger and develop brighter colors during the breeding season, making it easier to differentiate them from females.

Breeding

Giant Bettas are mouthbrooders, with the male taking on the role of incubating the eggs. After the female lays the eggs, the male collects them in his mouth for safekeeping. Any eggs missed by the male are often picked up by the female and spat toward him to ensure their care. The female does not participate further in raising the young. After around 10-14 days, the male releases the fry, who can be fed on newly hatched brine shrimp. Due to the larger size of Giant Bettas, breeding may require a spacious tank, ideally around 80 liters (20 gallons) or more, to allow the pair ample space. Patience and careful tank management can yield successful broods.

Tank Requirements

Giant Bettas thrive in a peaceful, well-maintained environment. A tank of at least 40 liters (10 gallons) per fish is recommended, with soft water, low flow, and stable water parameters. The temperature should be kept between 25-30°C (77-86°F) with a pH range of 4.5-7.0. Use a soft substrate and include plants, driftwood, and rocks to create shaded hiding spots. Due to their tendency to jump, a secure lid is essential. These fish are sensitive to sudden changes in water conditions, so regular water changes of around 10-15% weekly are necessary. Ensure any tankmates are peaceful, as Giant Bettas can become stressed if harassed.

Special Information

Giant Bettas are susceptible to parasites, particularly if exposed to infected tankmates or live food. Quarantining new tank additions is recommended to reduce the risk of parasite transmission. As they are prone to digestive issues, including bloating, feed them small meals and avoid overfeeding. Due to their specific needs, including water quality sensitivity, these fish are best suited for experienced aquarists.