I use nothing.
If water gets under a rubber mat or something, that would be much worse than if there was some air circulation.
My sump sits inside an acrylic tray (my stand has no floor). The tray sits directly on the floor.
The legs of my stand sit directly on the floor.
If water gets under a rubber mat or something, that would be much worse than if there was some air circulation.
My sump sits inside an acrylic tray (my stand has no floor). The tray sits directly on the floor.
The legs of my stand sit directly on the floor.