dmolavi
Aquarium Advice Addict
I want to set up an ATO on my nano, but it is rimmed, and I can't stand the sight of the waterline below the trim. I'm leaning towards the Tunze Osmolator, but was wondering if anyone else has them mounted on a rimmed tank, and if so, what the size of the magnetic "puck" that is used to mount them is, and how far below the top of the "puck" the waterline is.