DIY Endless Aquarium Whirlpool

Keep your fish, salamanders or turtles exercising easily with an endless whirlpool current! Drill holes in a lift tube and attach suction cups in the holes. Cut the lift tube for the entire structure to be shorter than your tank, attach the lift tube to a power head and attach the structure to the side wall of your aquarium. Repeat the process to make a second current generator and attach the generator upside-down to the opposite end of the tank.