You're lucky yours is so clean! I had literally 4-5 pounds of rust and dirt in mine (what I like to refer to as "tank poop") I used the KBS tank sealer kit and had good results but it is a bit of a pain in the butt. Even though yours is so clean, if it were me, I'd re seal it just so you know for sure that you never have to worry about it again... Here's what I used http://www.kbs-coatings.com/ Here's a few pics of the tank poop I had to deal with http://images20.fotki.com/v534/photos/7/1583337/8354678/P1060017-vi.jpg http://images9.fotki.com/v448/photos/7/1583337/8354678/P1060019-vi.jpg BTW, what is the attachment policy with the list???