We are a rarity in the world of seafood. While many other retailers claim to be sustainable, they are often selling fish and shellfish that is anything but. We believe in making a difference through action, and refuse to sell many species because there is simply no excuse to do so. We work with the Cornwall Wildlife Trust and the Marine Conservation Society's sustainability ratings to guide which species we sell, and which we don't! Here are the top fish to avoid, and our suggestions for beautiful, sustainable and equally delicious alternatives.