Species description

Care, breeding and tankmates

Fish profile

Temperament

Semi-aggressive

Generally peaceful towards other species but males are boisterous and driven by reproduction. Males will constantly display their vibrant colors to females and rival males. They are highly active and fascinating to observe in a biotope setting.

Diet

Carnivore

Strictly carnivorous, preferring live foods over anything else. Daily feedings of live baby brine shrimp, daphnia, and blackworms are highly recommended. Some individuals can be weaned onto frozen foods, but live food ensures the best coloration and egg production.

Adult size

5 cm

Sex ratio

Specific M:F ratio

Best kept in a ratio of one male to two or three females. Males will constantly harass females to spawn, which can be exhausting or fatal if not dispersed. Multiple males will display and occasionally spar, so provide plenty of hiding spaces.

Feeding frequency

Twice daily

Feed them small amounts two to three times daily. Due to their rapid metabolism and short annual life cycle, they need constant nourishment. Uneaten food should be carefully siphoned out to prevent water fouling.

Bioload

Low

Produces a very low bioload due to their small size and short lifespan. A simple sponge filter is generally sufficient to maintain water quality. Frequent, small water changes are essential to mimic the fresh rains of their natural habitat.

Flow

Strong

They absolutely require very low water flow to thrive. Strong currents will quickly exhaust them and cause severe stress. A gently bubbling sponge filter provides the perfect amount of water movement and oxygenation.

Jump risk

Yes

Like most killifish, they are incredibly adept jumpers and will find the smallest gap in a lid. A completely sealed cover is mandatory to prevent them from drying up on the floor. Use mesh or glass to secure any open areas.

Reproduction

Substrate spawner

They are annual killifish that bury their eggs deep in the substrate. In the wild, the eggs survive the dry season in the mud and hatch when the rains return. In captivity, peat moss is used as a spawning medium, which is then harvested, dried, and incubated for several months.

Compatibility & tankmates

Species only

Best kept in a species-only setup for breeding purposes. They are too small and delicate to be kept with larger, boisterous community fish. Small, peaceful tetras or Corydoras can be kept with them, but a dedicated setup is preferred.

Tank level

Bottom

They utilize all levels of the tank but spend significant time near the bottom searching for food and spawning sites. A dark substrate like peat moss makes them feel secure. Providing dense plantings will encourage them to venture into the mid-water.