unfortunatly, i've pretty much had to use pressure treated wood on my new viv. the local hardware store only sells regular and pressure treated lumber/plywood. no particle boards or other stuff commonly used for tanks. without a garage or big enough shed, i've had to build it outside in the rain/snow etc so went with pressure treated wood so it woulden't get all damaged before it was completed and brought inside. building it inside the house would have been extremly difficult, if not nearly impossible. so...what is a good way to waterproof it and seal it to stop chemicals from leaching out into the soil and killing everything in it? some stuff i was thinking of: -lining it in plexiglass or acrylic -covering the inside with a thick layer of aquarium sealent or epoxy resin -useing this rubber based fish pond safe stuff called Liquid Roof ( http://www.liquid-roof.com ) to seal it. -polyurethane anybody else have any better ideas or opinions about any of the above?