You might just need to clean better. Only time I can smell anything from mine is when I open a tub and someone has left a big steamer. Go visit Reptile Basics website. They have a cleaner called F10, works great. Also, if you can't clean your hides thoroughly, maybe you should ditch those and get new. Again, Reptile Basics has some awesome black ones. They look like this (and are super easy to clean)-http://img.tapatalk.com/aeffa1de-3acf-07d5.jpg
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