Abstract: A fish feeder having an inner tray sliding within an outer tray. The trays are provided with holes which, when brought into alignment, allow feed to drop from the inner tray through the outer tray and on to a spreader, whereby the food is evenly distributed across the surface of water. The inner tray is driven by pneumatic actuation to reduce noise and precisely control the amount of feed dropped upon each actuation. Means are provided for reducing the ingress of food particulate between the trays, which would otherwise act to increase friction and decrease the efficiency and repeatability associated with food delivery.