My friend recently rescued a fish tank with stand from a garage of a friend. His son left it there and man is it gross! Anyway, from the dimensions, it appears to be a 20 extra high. It has the same floor space as a ten gallon, but is almost 24" high. Do you think it could be setup for a single garter by adding shelves and lots of vines/plants to climb? Would you use the heat mat on the side to provide better warmth overall? Or use the premise that heat rises? Any thoughts?