SQUARE Floating Water Change and Top Off Diffuser for Freshwater and Saltwater Fishtanks - 3D Printed - Aquarium Safe ABS Plastic!

An original invention of Galaxy Glow Studio, the FLOATING WATER CHANGE AND TOP OFF DIFFUSER has now been improved! The newest VERSION 2 is even better than the much loved ORIGINAL FLOATING WATER CHANGE AND TOP OFF DIFFUSER! Works with freshwater and saltwater fishtanks!  No more blown out substrate or stirred up silt! No more damaged plants! No more pushed aside fish or tank inhabitants! Do water changes without making a mess! Hands free!  Two sizes: STANDARD: 5.5 inches in diameter! Works with most tanks between 10 gallons up to 100 gallons! The best option for most tanks! SMALL: 4.5 inches in diameter! Works with tanks between 1 gallon up to 20 gallons! Perfect for those who prefer smaller items, pour much more slowly, or from smaller containers. This tool is the perfect item to keep your substrate and plants in place while doing water changes or topping off your tank! Support the original inventor and creator - avoid imitators and copycats! No need to attach to your tanks ri