Note on Sani-Tred as I was considering using it as well. But upon further scrutiny, you need to seal it with epoxy ANYWAY like MAS or west. But you could save money and just use the epoxy. The reason you must use epoxy is for UV protection- the sani-tred WILL break down unless you get their UV proof stuff, but guess what- the UV proof stuff isn't good for aquariums because of the chemicals used to make it. Don't know if I am too late, but save yourself some money and just use the epoxy.