I bought this moss mat, because it's water only washable, the real stuff had a lot of chips and particles and I didn't want to risk getting something in her sore foot(re:sore looking toes). Nowhere does it say how often I need to take this out to clean it. Does anyone else use this type of substrate? How often do I break down the entire tank for cleaning? And do you know if I can use artificial plants from Kmart or do I need to buy the ones from the pet stores specifically for reptile and amphibians?