As far as we know Ecological Laboratories is the first fish food manufacturer to commercially produce this type of food. Variety is the spice of life. If you don’t have time to cut up fruits and and vegetables for your pond fish give them this “fruits and greens” blend. We’ve done the cutting and blending for you. There are apples apricots kiwis mango’s papayas peaches pears broccoli cabbage peas red peppers tomatoes zucchini and spinach in this scientific blend.