No but close. Take a small plastic coke bottle 16-20 oz. Cut off the cone part, right above the label and then cut the threads off. Invert the cone back into to other part of the bottle and tape(duck tape) it so that the cone can not move in or out of the bottle. Then pierce a hole through the top of the trap (the cut edges) and tie a string through the hole. Place some food in the trap and hopefully with a little patience he will swim in and you jerk him/her up. I am still trying to catch a fiji damsel, but he seems to be really smart. He gets more and more aggressive everyday.