Has anyone had experience using this stuff? (It's Door/Window insulation foam) It's mostly used for backgrounds but I've seen it used on the floor of vivariums before. I was gunna spray it about 6 inches deep and use a hole saw to cut out holes for potted plants. Then put like a 1 inch hole through to the bottom of those holes to allow moisture from the false bottom to rise. After that I was gunna lay out the rest of my decor and throw an inch or 2 of peat to allow moss and ferns grow throughout the entire tank. Does this sound crazy?