I have really bad luck with UTH. Several have just up and stopped working and today one actually cracked the bottom of the tank my ball lives in. They aren`t exactly cheap to replace either. I am not sure if it is the brand (I use Zoo Med), or if I am doing something wrong. I will be moving Gaia to a larger tank soon (probably next month), and was planning on using a UTH on her new tank. I am wondering though if a CHE might be a better idea? Are there other good heating options? The UTH has always kept the temperatures where they need to be. Right now her tank is a ten gallon because she is only about a foot and a half. If UTH are needed, would a CHE be alright until I move her next month to the larger tank so I don`t have to get two of them?