Rosy Tetra

Characidae sp.

Rosy Tetra (Characidae sp.) — Easy care, Peaceful, under Tetra & Characin. Minimum tank in the app: 14.5 US gal min; aim for 75–82°F and pH 5.5–7.5. Rosy Tetras are well-suited for community tanks, bringing a vibrant presence with their shoaling nature.

Rosy Tetra (Characidae sp.) in a planted freshwater aquarium
Care levelEasy
TemperamentPeaceful
Min tank size14.5 US gal min
pH range5.5–7.5
Temperature75–82°F
Max size1.6 in (4.0 cm)
Captive lifespan3–6 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.

Rosy Tetra Tank Setup

Creating a balanced environment for Rosy Tetras involves providing ample swimming space complemented by hiding spots, such as plants and decorations, to foster a sense of security. A soft substrate is preferable, and moderate to low water flow helps them feel comfortable. Lighting should mimic natural conditions, ideally with some shaded areas to reduce stress and promote natural behaviour.

What Do Rosy Tetras Eat?

These tetras are omnivorous and typically feed quickly, so it's essential to provide small, high-quality foods that sink slowly to accommodate their feeding habits. Competition for food can arise if tank mates are overly aggressive; thus, ensuring a varied diet will help maintain their health and vibrant coloration.

Rosy Tetra Tank Mates

Rosy Tetras are best paired with other peaceful species that occupy similar mid-level swimming zones. Suitable companions include small community fish like smaller rasboras or peaceful barbs. Avoid aggressive or large predators that could intimidate or prey on them.

Are Rosy 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 importance of group size, leading to stress and reduced activity in smaller groups. neglecting water parameters suitable for Rosy Tetras can result in health issues, as they thrive within specific pH and temperature ranges.

Building a community? Run the full list through the stocking calculator before you add anything else.

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