Congo Tetra
Characidae sp.
Congo Tetra (Characidae sp.) — Easy care, Peaceful, under Tetra & Characin. Minimum tank in the app: 24 US gal min; aim for 73–82°F and pH 5.5–7.5. Congo Tetras are ideal for aquarists seeking dynamic, mid-water swimmers that thrive in groups.

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.
Congo Tetra Tank Setup
Create a spacious environment with open swimming areas complemented by dense vegetation or driftwood for shelter. Aim for gentle water flow and subdued lighting to mimic their natural habitat. A sandy or fine gravel substrate can enhance comfort, while scattered plant arrangements can promote social interactions without overcrowding.
What Do Congo Tetras Eat?
Congo Tetras are quick feeders that thrive on a varied diet of micro foods, including flakes and small pellets. They may compete for food if kept in smaller groups, so ensure ample sources are available to reduce stress during feeding times.
Congo Tetra Tank Mates
Best kept with similarly sized, non-aggressive species that prefer mid-water zones, such as other tetras or small rasboras. Avoid large or overly boisterous companions which may intimidate them. When housed in larger groups, they display a natural hierarchy but are generally peaceful amongst themselves, as long as groups are sufficiently sized.
Are Congo 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 frequent oversight is underestimating their social needs; keeping them in small numbers can lead to stress and reduced vitality. neglecting water parameters, particularly pH and temperature, can result in health issues.
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.




