Tetra Goldfish Mix Tetra Pond Goldfish Mix is a highly palatable, complete floating food mix for Goldfish, Shubunkins, and Comets. It contains 3 different types of food, flakes, sticks and dried shrimps for an interesting and varied diet. This is made with BioActive formula for a healthy immune system, increased energy, and improved vitality. Tetra Pond Goldfish Mix uses the finest high-quality ingredients to give your fish everything they need in a balanced diet. Available in 140g and 560g packs. Please select the required size from the drop down menu.