Remove difficult-to-net bully fish from your aquarium without stress. Simply place baited heavy-duty trap in your aquarium. Manually lower sliding-glass trapdoor once the desired fish has entered the trap. Unique design allows trap removal with the fish inside without it completely draining. Tilt to vertical position when removing trap from aquarium. Reduces fish stress and damage to delicate fins. Ideal for fresh or saltwater aquariums with rocky decoration or elaborate aquascape such as reef aquariums or African cichlid aquariums. Measures 11" x 6-3/4" x 6-3/4" high.