With this clever slow sinking feeder you can control the cages sinking speed to catch fish near the surface or in mid water. This is not feasible with conventional cage feeders. The design allows you to catch fish regardless of the depth they are swimming. This method is extremely effective for modern carp fishing at commercial fisheries. A floating device attached to the bottom of the cage replaces the lead weight. It features a small opening closed by a plug, by which you can balance the body with shot so that it will sink slowly or quickly. The cage floats if no lead is added.