Floating worm based sticks Mimics natural diet. Tasty, nutritious recipe. Help your goldfish thrive with a healthy diet. This carefully balanced food contains easily-digested ingredients to promote goldfish growth, health, colour and vitality. It's also designed to minimise water pollution which is just the job for healthier fish. Fish over 5cm long can enjoy 2 sticks twice a day. If your fish are smaller than 5cm, then feed them 1 crushed stick twice a day. Keep water clean and healthy and don't overfeed your fish.