With all the posts, I am assuming this is a glass tank? IMO, I would try it, but I do a lot of stupid things that my husband looks and me and says (often), "If that ruins the floor I am going to be passed PO, and I am not helping you clean it up." This information is just so you know that to save some money, I am a little crazy.
Anyway, I would think that some silicon on the seam would fix it right up. I would try it, especially for the price.