FAQ 1) Is Flipping difficult? Flipping is Easy once you know how, but it does require you to follow the instructions. Flip in areas with low water currents and near the top of the tank where you have room to flip away from your rocks. 2) What is the maximum tank thickness Flipper can be used on? Flipper Max can be used on glass or acrylic tanks up to 25mm (1") thick and no less than `5mm (5/8"). 3) Will the metal blades rust and how long do they last? Metal blades are made with 316 stainless steel which is highly corrosion resistant. You can leave the Flipper in your tank and the blade should last for months depending on your use. 4) Does Flipper Max work on bowfront tanks? Yes! 5) Is Flipper the same as a Mag-Flip? No. Mag-Flip was made by another company using our patent license. We were not satisfied with the way that product performed so we did not renew the licensing agreement. We spent the next 18 months perfecting Flipper with stronger magnets, stainless steel blade and a more efficient scrubbing pad....it was worth the wait!