Flame Tetra

Characidae sp.

Flame Tetra (Characidae sp.) — Easy care, Peaceful, under Tetra & Characin. Minimum tank in the app: 10.0 US gal min; aim for 68–79°F and pH 5.5–7.5. Flame Tetras are an ideal choice for aquarists seeking to create a vibrant, active mid-water shoal.

Flame Tetra (Characidae sp.) in a planted freshwater aquarium
Care levelEasy
TemperamentPeaceful
Min tank size10.0 US gal min
pH range5.5–7.5
Temperature68–79°F
Max size1.0 in (2.5 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.

Flame Tetra Tank Setup

To create a suitable environment for Flame Tetras, aim for a tank with plenty of mid-water swimming space, complemented by areas of dense vegetation and sheltered spots. A gentle water flow suits their preferences, while a dark substrate can enhance their vibrant colors. Maintain moderate lighting to encourage activity without causing stress, and arrange plants to create visual barriers that promote comfort and security.

What Do Flame Tetras Eat?

These tetras are quick feeders and thrive on micro foods, including finely crushed flakes and small pellets. When introducing new food, ensure it is small enough to prevent competition-related stress during feeding times.

Flame Tetra Tank Mates

Flame Tetras pair well with other peaceful species that occupy similar mid-water zones, such as small rasboras or other tetras. Avoid larger, more aggressive fish that may see them as competition or prey. Within their species, they are harmonious in groups, but odd numbers can lead to bullying or stress; thus, always keep them in a minimum group of six.

Are Flame 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. A common error is underestimating the need for group dynamics; failing to keep at least six can lead to stress and lethargy. Overcrowding and incompatible tank mates can also disrupt their natural behavior, leading to aggression or hiding.

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

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