Originating from Africa, Congo Tetras have a beautiful rainbow-like color. With an orange, light blue, and silver color combination, they are undoubtedly a fish to be added to your aquarium. Congo Tetras are also popular in the market, and they have the highest sales! However, as you may know, Congo Tetras like to swim in groups. Thus, adding tank mates for them is necessary. Below, I have listed the seven best tank mates for Congo Tetra. Read it carefully!
Rainbowfish are colorful freshwater fish that are friendly to the Congo Tetra. Their adult size is a little short, only 4 to 4.5 inches. Thus, they don't require a giant tank. Compared to Congo Tetras, rainbowfish are nonaggressive and tend to be calm. However, note that Rainbowfish may be aggressive toward their species.