Species description

Care, breeding and tankmates

Fish profile

Temperament

Semi-aggressive

Unlike the highly aggressive Siamese fighting fish, Betta edithae is a peaceful and relatively shy species. Males may exhibit minor territorial behavior, particularly when breeding, but serious fights are rare if sufficient space is provided. They are social fish that interact peacefully within their group and establish a stable hierarchy. Because of their timid nature, they can easily become stressed by very active or boisterous tankmates, requiring a calm environment.

Diet

Omnivore

As carnivores, Betta edithae require a diet rich in high-quality proteins to maintain their health and color. They thrive on a variety of live and frozen foods, such as brine shrimp, daphnia, bloodworms, and white worms. While they may eventually learn to accept high-quality micro-pellets or freeze-dried foods, they are generally disinterested in standard flake foods. Feeding a varied diet is particularly important for conditioning breeding pairs and ensuring successful mouthbrooding.

Life expectancy

3-5 years

In captivity, Betta edithae typically enjoys a lifespan of 3 to 5 years when provided with optimal care. Their longevity is closely linked to the stability of their environment, low stress levels, and a high-quality diet. Providing a well-planted aquarium with plenty of hiding spots and maintaining stable, slightly acidic water conditions will help them reach their maximum age. Regular health checks and prompt attention to water quality changes are also important factors in ensuring a long and healthy life.

Sex ratio

Harem

For Betta edithae, stocking in a harem configuration consisting of one male and two or three females is highly recommended. Alternatively, a compatible pair can be housed together in a smaller setup, or a larger, balanced group can be maintained if the tank is sufficiently spacious. In a group environment, they will establish a natural hierarchy, which helps to distribute minor territorial aggression. Providing multiple hiding spots and visual barriers is crucial to allow females and submissive males to retreat and rest.

Feeding frequency

Twice daily

It is recommended to feed Betta edithae once or twice a day with small portions that they can consume within a few minutes. Overfeeding should be avoided to prevent water quality issues and health problems like bloating or constipation. Providing a weekly fast day can also be beneficial for their digestive health. During breeding, the mouthbrooding male will go without food for up to three weeks, so it is vital to condition him well beforehand.

Bioload

Low to Medium

Betta edithae produces a low-to-medium biological load, making it relatively manageable in terms of aquarium filtration. However, due to its preference for clean, stable water, a reliable filtration system is necessary to prevent any accumulation of ammonia or nitrites. The filter should be sized appropriately for the aquarium volume but configured to avoid creating strong currents that can stress the fish. Regular partial water changes are essential to maintain the low nitrate levels this species needs to thrive.

Flow

Stagnant

This species naturally inhabits still or very slow-moving waters, such as swamps, peatbogs, and quiet forest streams. Consequently, they prefer a weak water flow in the aquarium, as strong currents can exhaust and stress them. Air-powered sponge filters or hang-on-back filters with adjustable flow rates are excellent choices for their setup. Creating zones of calm water using dense planting and driftwood will help them navigate the tank comfortably.

Jump risk

Yes

Betta edithae is an agile and accomplished jumper, representing a high risk of escape from open aquariums. They can easily leap through very small gaps in the cover, especially when startled, during spawning, or when exploring. A tight-fitting lid with no significant openings is absolutely mandatory to keep them safe inside the tank. Additionally, keeping the water level slightly below the rim and providing ample surface cover like floating plants can help minimize their jumping instincts.

Reproduction

Oviparous

Betta edithae is a paternal mouthbrooder, which makes its reproductive behavior fascinating and relatively easy to observe in captivity. During spawning, which is often initiated by the female, the male fertilizes the eggs and collects them in his mouth. He will then incubate the eggs for 14 to 20 days without eating, requiring a quiet and stress-free environment. Once the fry are released, they are independent and should be fed immediately with newly hatched brine shrimp or microworms.

Compatibility & tankmates

This peaceful species is highly compatible with other quiet, non-aggressive tankmates that share similar water requirements. Suitable companions include small tetras, rasboras, corydoras, and peaceful loaches. Boisterous, fast-swimming, or fin-nipping fish should be strictly avoided as they will easily outcompete or intimidate the betta. They can also be kept in a species-only tank, which is the ideal setup if successful breeding and fry survival are desired.

Tank level

All levels

This benthopelagic species occupies all levels of the aquarium, actively moving throughout the entire water column. They spend a significant amount of time near the bottom and middle zones, searching for food and patrolling their territory among plants and driftwood. However, being labyrinth fish, they frequently visit the surface of the water to gulp atmospheric air. Providing floating plants and open surface areas ensures they feel secure and can breathe comfortably at the top.