Pond Friend Goldfish Sticks. It encourages healthy growth and its added colour enhancer brings out the best in your fish. It is ideal for goldfish and other pond fish, they will simply love it! Pond sticks are made to float by the addition of air to the pellet so it is important to consider the actual weight of food you are buying as many suppliers simply add more air to their sticks to bulk up the food and give the impression of a massive bag of food when in fact what you are buying is a large bag of air.