January Tetra
Characidae sp.
January Tetra (Characidae sp.) — Easy care, Peaceful, under Tetra & Characin. Minimum tank in the app: 17.2 US gal min; aim for 73–81°F and pH 5.5–7.5. The January Tetra is an engaging choice for aquarists seeking a lively addition to a well-planned mid-water community tank.

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.
January Tetra Tank Setup
Aim for a spacious layout that incorporates plenty of plants and hiding spots to mimic their natural habitat. A flowing water current can enhance their active swimming behavior, while a soft substrate will support their foraging instincts. Lighting should be moderate, allowing for shaded areas that promote comfort and security.
What Do January Tetras Eat?
The January Tetra is an omnivorous feeder that thrives on a diet of micro foods, and they can be somewhat competitive during feeding times. Ensure a varied diet to promote vibrant coloration and overall health, but be mindful of distribution; scatter food across the tank to minimize competition and ensure all members get their share.
January Tetra Tank Mates
Excellent companions include other peaceful mid-water dwellers of similar size, such as rasboras or small gouramis, which can complement their social needs. Avoid larger or more aggressive species that could outcompete them for food or space. Intraspecies, maintaining a group of at least six is crucial to prevent isolation and stress-related issues.
Are January 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 pitfall is underestimating the need for group dynamics; keeping fewer than six can lead to stress and abnormal behavior. neglecting water parameters can be detrimental, as fluctuations outside their preferred pH and temperature range may lead to health issues and reduced vitality.
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.




