Yellow-tailed Congo Tetra
Characidae sp.
Yellow-tailed Congo Tetra (Characidae sp.) — Easy care, Peaceful, under Tetra & Characin. Minimum tank in the app: 19.8 US gal min; aim for 72–79°F and pH 5.5–7.5. The Yellow-tailed Congo Tetra is ideal for those seeking a lively, mid-water shoaling fish that enhances the dynamism of a 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.
Yellow-tailed Congo Tetra Tank Setup
Create a balanced environment that includes open swimming space alongside ample vegetation and hiding spots. Utilize soft substrate to enhance the comfort of bottom-dwelling companions, moderate water flow to mimic their natural habitats, and subdued lighting to highlight their colors and encourage natural behaviors.
What Do Yellow-tailed Congo Tetras Eat?
These tetras are quick feeders and benefit from a varied diet of micro foods to maintain their vibrant coloration and health. Monitor feeding times to ensure all fish have access and reduce competition, as rapid feeding can lead to stress or aggression if food is monopolized.
Yellow-tailed Congo Tetra Tank Mates
Ideal tank mates include other peaceful species that occupy similar mid-water zones, such as rasboras and small catfish. Avoid larger, more aggressive fish that may outcompete them for food or space. Within their species, maintaining groups of six or more prevents stress and enhances group dynamics.
Are Yellow-tailed 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. Aquarists often underestimate the importance of group size, leading to stressed fish that refuse to display natural behaviors. neglecting water quality or proper tank mates can result in aggression or health issues, as these tetras thrive in stable, peaceful environments.
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.




