I like the idea here, have you thought of mounting them vertically instead of horizontally so that you have a lower profile in the tank? I thought this looked pretty good (
https://www.reef2reef.com/threads/b...a-with-rotary-drum-filter-build.534230/page-5 see post #95) but could be improved if the magnets weren't on the glass. I think you could build something very similar to what you have now, using a longer more slender piece of acrylic would let you drop it further into the tank. If you can stop it from touching the glass that would be ideal, but if it needs to I would just look for some silicone bumpers (like tunze has, I think they're silicone) and use those for vibration dampening/scratching on the glass. I don' know if both sides of the magnet are waterproof on the gyres however, but you could always buy one side of a tunze magnet and use that for the opposite side of the wet side gyre magnet if the one that comes with the pump isn't supposed to be submerged.
