I'm about to move my oceanic cube and the sand has been in the tank for roughly 2 years. I'm really going back and fourth on just simply reusing the sand that's in the tank. I would guess there is roughly 40lbs or so in the tank currently. I'm two hours away from any of our sponsors so it's out of the question to just go and pick up new sand.:doh: If I were to keep my current sand, I would rinse it out really well. Now, here is another question. I will be moving the tank on Saturday to my new apartment. If I decide to keep my sand, do you believe there will be a problem with putting it back in right after I rinse it out thoroughly?