Lees 4 Way Cone Worm Feeder is used to dispenses live or frozen worms and or brine shrimp and helps reduces build-up on bottom of aquarium floor. The 4-Way Cone Worm Feeder comes with a suction cup to allow you to attach the feeder to the aquarium wall or may be left to float in the aquarium. The floating ring may be used to restrict dry food feeding to a certain area of the tank.