"mm" wrote in message
...

When I had a sal****er aquarium, I would find salt on the out sides of
it and on the desk I kept it on, even though no one was touching the
tank except me, and I wasn't spilling any water.

I guess somehow it evaporates and condenses outside the tank. Isn't
there an expression, or did I make it up, about salt in the air?

No, you are correct. I have seen audio CDs, stored about a block away from
the ocean, where the salt has corroded its way into the 'spiral groove' and
destroyed the CD.