Ceros Tetra

Characidae sp.

Ceros Tetra (Characidae sp.) — Easy care, Peaceful, under Tetra & Characin. Minimum tank in the app: 15.9 US gal min; aim for 75–82°F and pH 5.5–7.5. The Ceros Tetra is a vibrant addition to a well-planned mid-water community tank, ideal for aquarists who value peaceful dynamics.

Ceros Tetra (Characidae sp.) in a planted freshwater aquarium
Care levelEasy
TemperamentPeaceful
Min tank size15.9 US gal min
pH range5.5–7.5
Temperature75–82°F
Max size2.0 in (5.0 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.

Ceros Tetra Tank Setup

Opt for a tank layout that balances open swimming space with ample hiding spots, such as plants and driftwood, to cater to their natural inclinations. A gentle flow mimics their native habitats, and subdued lighting enhances their coloration while providing a sense of security.

What Do Ceros Tetras Eat?

These tetras are opportunistic feeders, favoring micro foods, and thrive in environments where food is plentiful. Feeding should be spread out to minimize competition, as overly aggressive feeding can stress them and affect their health or coloration.

Ceros Tetra Tank Mates

With a peaceful temperament, Ceros Tetras pair well with similarly sized, non-aggressive species, such as smaller rasboras or peaceful barbs. Avoid larger predatory fish that could intimidate or prey on them. Intraspecies, they exhibit harmonious behavior when kept in groups, but overcrowding can lead to stress.

Are Ceros 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 required group size, leading to social stress and isolation among individuals. neglecting water quality parameters, particularly pH and temperature, can lead to health issues that compromise their well-being.

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

Log tests and reminders in App-aquatic—free, same data you see here.