Do you want to remove a sick, timid, shy or even an aggressive fish from the tank ? Does the fish hide in the decoration as soon as it sees the net or does it just keep getting away ? The Hobby Genius fish trap is the answer. Because of ist virtually invisibility underwater it enables simple and no-hassle catching. Place the trap on the bottom of the aquarium. Then pull on the nylon string and open the trap door. As soon as the desired fish has swum inside, slacken the string and close the fish trap. Masses: 20,5 x 13,0 x 14,5 cm (LxWxH)