mighty magnet

Hello - I am having my first acrylic aquarium built and trying to decide on appropriate mighty magnet size. Front glass will be 1” thick and the two sides will be .75” thick. Should I go with the F4 or F5 magnet size? Seems like F4 is ideal for .75” and F5 is ideal for 1” glass. I’d like...

Mighty Magnet Used, does not come with extra pads but it works and it is still very powerful comes with the original box. I realize this is too powerful for my setup so want to sell and buy an appropriate one my tank thickness. Shipping not possible, pickup location is Toronto, Ontario.

Hello all. Just joined the forum. Really would appreciate insight. I have a 1 inch thick acrylic tank. I am fully ready and able to remove the scratches on the acrylic with my magnet and sand paper. But there are these 2 very odd vertical lines (that easily may have been caused by me) that are...