I picked up a 8' x 2' x 2' tank that leaks for pretty cheap off craigslist and I have some questions. It has no center braces, what is something I could use as a center brace? The glass is very thick either 5/8" or 3/4". Also would it be wise for me to reseal the entire tank or just the corner that needs to be fixed as I have NO experience resealing tanks. Thanks for any help!