Salt buildup everywhere!?

I have a 10 gallon brackish tank, and the salt is everywhere!! I use instant ocean sea salt, and I guess when the water evaporates from the tank the salt gets left behind on all of the surfaces. My aquarium hood is covered in salt, the filter, the sides of the tank, its everywhere! I hate it because it doesn't look very nice! Does anyone know how I can stop this from happening, or at least slow it down?! thanks!