Glofish tetra is a patented brand of fluorescent fish that have been genetically modified to produce bright neon colors. These fish are actually zebrafish that have been modified to include a fluorescent gene, causing them to glow under certain light conditions. The Glofish tetra is a small freshwater fish that typically grows up to two inches in length. They are peaceful, schooling fish and are best kept in groups of five or more in an aquarium with plenty of hiding places and plants. They are omnivorous and will eat a variety of foods including flakes, pellets, and live or frozen foods. Glofish tetras prefer water that is kept at a consistent temperature between 72 and 80 degrees Fahrenheit, and the aquarium should have a filter and aeration system to maintain good water quality. They are relatively easy to care for and make a great addition to a community aquarium, adding a unique and colorful element to the tank.