Choosing Fish Food for Your Pond: A Guide for Koi and Goldfish Owners When it’s colder, they slow down, and so the need for high-quality, nutritious fish food reduces. Knowing how much, when and what to feed them is crucial. https://www.simpleguideto.com.au/choosing-fish-food-for-your-pond-a-guide-for-koi-and-goldfish-owners/