Bloodfin Tetra

Characidae sp.

Bloodfin Tetra (Characidae sp.) — Easy care, Peaceful, under Tetra & Characin. Minimum tank in the app: 19.8 US gal min; aim for 72–82°F and pH 5.5–7.5. Bloodfin Tetras are ideal for aquarists seeking a lively, shoaling species that thrives in groups.

Bloodfin Tetra (Characidae sp.) in a planted freshwater aquarium
Care levelEasy
TemperamentPeaceful
Min tank size19.8 US gal min
pH range5.5–7.5
Temperature72–82°F
Max size2.2 in (5.5 cm)
Captive lifespan4–8 years
SchoolingYes · 6+ recommended

Captive lifespan reflects typical experience in a home aquarium, not maximum recorded age; genetics, sourcing, and care vary.

Natural distribution

Mostly South America

  • South America

Regional colours match the stocking calculator’s origin map.

Bloodfin Tetra Tank Setup

Create a balanced environment with open swimming space complemented by plants and driftwood for cover. A gentle flow mimics their natural habitat in South America, while subdued lighting can reduce stress. Use a soft substrate to protect their delicate fins and promote foraging behavior.

What Do Bloodfin Tetras Eat?

Bloodfin Tetras are quick feeders and thrive on small, varied diets including flakes, pellets, and live foods. Ensure they receive enough food to prevent competition-related stress, which can lead to health issues.

Bloodfin Tetra Tank Mates

These tetras harmonize well with similarly sized, peaceful species such as rasboras or smaller cichlids. Avoid aggressive or overly large tank mates that could intimidate them. Maintain a group of at least six to minimize stress and ensure stable social interactions.

Are Bloodfin Tetras Good for Beginners?

In App-aquatic we file this under easy care. That still means a cycled tank, realistic stocking, and parameters that do not swing every weekend. Aquarists often underestimate the need for group size, leading to stressed fish that hide or display erratic behavior. neglecting water parameters or tank structure can result in a lack of confidence and poor health, as these fish thrive in stable environments with appropriate conditions.

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