shad, I love the set up of the racks that is nice. one thing I would suggest too for others thinking about this. when your applying the final coat of foam, a nice touch that I did that really helped is if you have some old sand I caked the old sand in with the foam. the sand sticks to the foam very easy and gives is a more natural look and as time goes by it seems the sand gets algae and growth on it quicker than the foam.