Well Over the past couple of weeks From Time to time Ive noticed every once and a while that there was a salt deposit at the spot where the black frame meets the glass on the bottom of the tank. I just figured that to came from water dripping down the glass while I was working in the tank. But yesterday night I noticed that there was some sand deposited there. I cleaned it away and went to bed (never going in the tank for anything) and when I woke up this morning there was another sand deposit. My question is can this be fixed w/o draining the tank. I assume that they will have to move the sand and seal the area connecting the bottom and front piece of glass. Also should this be a free service from the LFS where I bought the tank, or will I have to return the tank to Oceanic.