A school of Serpae Tetra is a real eye-catcher in the aquarium. These fish are also easy to care for. Serpae Tetra are usually fine in a community aquarium, but they are not always easy to get along with. Smaller fish, especially, may become the targets of relentless harassment and fin nipping. Serpae Tetra will do best with the company of their own kind in a school of at least 6. They can also get along fine with other similar-sized and active fish. Once established, they are very hardy, long lived, and easy to breed. Pack of 12 Size: 2 to 3 cm (medium)