Yes...get a MagFloat rated for the thickness of your tank's glass....remover the suction cups and put some AquaMend Epoxy to hold one side of the magnet to the clip that formerly held the suction cups. Then, put it on the glass of your aquarium and hold it there with the other side of the magnet on the outside of the tank. This method works like a charm. And, you can clean the glass with it, too.