King Britsh Goldfish Sinking Pellets are a complete food designed especially for fancy goldfish and other coldwater mid-water feeders. The pellets are 1mm to 2mm across and are likely to be particularly suitable for Orandas, Ryukins, Bubble-eyes, Veil Tails and Lion Heads. Sinking pellets save the fish from coming to the surface to feed, meaning they don’t gulp air, thus avoiding the risk of bloating or swim bladder disorders.