A fish descaling apparatus comprises a scaling member having a proximal end, a distal end and an aperture proximate the proximal end on a top surface thereon. The proximal end is removably coupled to a conduit connected with a conventional source of pressurized water and the distal end having a flat portion with a flange edge on at least one side thereof. A valve member is inserted within the aperture and adjusted to regulate the flow rate of water through the scaling member. In use, the flat portion with the flange edge facilitates descaling of the fish and the water runs through the scaling member simultaneously washes away the scales from the fish thereby facilitating efficient cleaning of the fish. In one embodiment, the apparatus comprises a plurality of stops that is adapted to collect and prevent the scales by moving towards the proximal end of the scaling member.