Species description

Care, breeding and tankmates

Fish profile

Temperament

Aggressive

They are peaceful, somewhat shy schooling fish that must be kept in groups of at least six. Larger schools encourage them to be more outgoing and display their interesting group dynamics. They interact peacefully with other species and do not nip fins or harass tank mates.

Diet

Omnivore

As adaptable omnivores, their natural diet consists of small invertebrates, crustaceans, and plant matter. In the home aquarium, they will readily consume standard dried flakes and pellets. For the best health and breeding conditioning, live or frozen foods like brine shrimp and bloodworms should be fed multiple times a week.

Sex ratio

Solitary

A mixed group of males and females works perfectly, as they do not form pairs or display significant aggression. Keeping a higher number of females to males can help spread out male breeding attention. A larger school size generally masks any gender-based behavioral issues.

Feeding frequency

Twice daily

Feeding them small, manageable portions twice a day is recommended for proper digestion. They are enthusiastic eaters, so caution must be taken to prevent overfeeding. Any food that remains uneaten after a couple of minutes should be removed to maintain water quality.

Bioload

The Garnet Tetra is a small species with a correspondingly low bioload impact on the aquarium. While a school adds to the overall waste production, a standard appropriately sized filter handles them easily. Consistent partial water changes keep their environment optimal and their beautiful colors vivid.

Flow

Moderate

They naturally inhabit sluggish waters, oxbows, and slow-moving tributaries in the Amazon basin. Consequently, they strongly prefer a gentle water flow over strong, turbulent currents. Driftwood and broad-leaved plants can be used to create calm resting areas within the tank.

Jump risk

Yes

Like many closely related tetras, they have a moderate risk of jumping out of open-top aquariums. A secure lid is necessary to keep them safe, especially when initially introduced or during aquarium maintenance. Floating vegetation provides overhead cover, which significantly reduces their skittish jumping behavior.

Reproduction

Oviparous

They are typical egg-scattering tetras that provide no parental care. Breeding is best achieved in a dedicated setup with very soft, acidic water and fine-leaved plants like Cabomba. The parents are notorious egg eaters and must be separated from the eggs as soon as spawning is complete.

Compatibility & tankmates

Peaceful

They are ideal residents for peaceful community aquariums containing other small South American species. Good companions include dwarf cichlids, Corydoras, hatchetfish, and peaceful characins. They are defenseless against large or aggressive species, which should be strictly avoided as tank mates.

Tank level

Middle

These tetras primarily occupy the middle and lower-middle sections of the aquarium. They enjoy hovering near plant thickets and driftwood structures where they feel protected. They will quickly rise to the mid-upper levels during feeding time but generally avoid the extreme surface.