I would go with carpet if you can get your hands on enough. Much better look in the long run. My old coach used to say "do it right do it light do it wrong do it long".

The people who say I can't do it can just sit the @^#% down and watch me. Friends call me Rusto I also subscribe to pond boss mag. http://forums.pondboss.com/ubbthreads.php?ubb=showflat&Number=504716#Post504716