I bought a used tank and it came with a few accessories. Exo Terra Reptile Cave - Medium, and Exo Terra Water dish - Medium http://www.reptilesupply.com/product.php?products_id=35 The hide is a little stained on the bottom and I have scrubbed all I can. The water dish is a little stained on the bottom too. So far Ive cleaned them with dish soap and vinegar. I am wondering if I can put them through the dish washer to sterilize them?