Species description

Care, breeding and tankmates

Fish profile

Temperament

Semi-aggressive

This is a gregarious, shy, and very peaceful fish that mainly occupies the upper and surface zones of the aquarium. The presence of a large group helps reassure individual specimens, reducing their natural wariness. To fully display their coloration and vitality, they require a tank rich in vegetative hiding places.

Diet

Carnivore

These are small omnivorous micropredators that in nature feed mainly on terrestrial and aquatic insects. In the aquarium, they willingly consume high-quality floating dry foods, but they benefit greatly from the inclusion of live or frozen food such as brine shrimp, bloodworms, and daphnia. Feeding should take place mainly at the water surface, where these fish habitually hunt.

Sex ratio

Harem

Maintaining a harem-style ratio of one male to at least two or three females is the optimal setup for Meinken's splash tetra. Males are eager breeders and will persistently pursue females to initiate spawning behavior. A female-heavy ratio ensures that no individual female is harassed to the point of severe stress or injury. If housing a larger school, ensuring a clear majority of females will promote a peaceful and biologically natural environment.

Feeding frequency

Twice daily

It is recommended to feed them one to two times daily, providing moderate portions that are entirely consumed within a few minutes. As active but small fish, frequent but light meals prevent intestinal blockages and maintain high energy levels. Excess food must be prevented from sinking quickly to the bottom of the tank.

Bioload

Meinken's splash tetra produces a minimal bioload, making it an excellent candidate for well-planted, peaceful community tanks. Due to their slight build and small food intake, they do not generate significant amounts of ammonia or organic waste. A gentle filtration system, such as a mature sponge filter, is more than capable of handling the waste of a small school. Maintaining good water quality is easily achieved through standard weekly maintenance and careful feeding practices.

Flow

Stagnant

They prefer very weak or completely absent water currents, reflecting the natural habitat of the Rio Negro's blackwaters. Environments with vigorous currents can cause prolonged stress and excessively fatigue the fish. The use of adjustable filters or the inclusion of dense plants at the surface helps create barriers to the water flow.

Reproduction

Oviparous

Unlike other species of the genus Copella, they do not perform acrobatic jumps out of the water but lay their eggs on leaves of submerged plants near the surface. The male carefully cleans the chosen site and, after fertilization, assumes the role of guardian, watching over the eggs and driving away intruders until hatching. This spawning method minimizes the predation risks for adult fish during reproduction.

Compatibility & tankmates

This species is ideal for extremely peaceful community aquariums. It is recommended to keep them in schools of at least 8-10 individuals and to associate them with small characins, pencilfish, and dwarf cichlids like Apistogramma. They should not be housed with large or turbulent species that could mistake them for prey or intimidate them.

Tank level

Top

This species is predominantly a surface and upper-level dweller, spending most of its time hovering just below the waterline. They are uniquely adapted to hunting small insects that fall onto the water's surface, so they rarely descend to the lower sections of the tank. Providing floating plants or tall, broad-leaved aquatic vegetation gives them the cover and security they naturally seek in the upper water column. Their activity is almost entirely localized to the top third of the aquarium.