My little gecko doesn't like her shed box. I'll put her in it and she'll stay for about... 1 minute or 2 and then gets out and goes back into her Reptile Den (The one Exo-terra makes). I have moss in the bottom. Is there some other substrate in the bottom to use? I know she needs to shed because her skin has gotten lighter within the past couple of days. Her shed box is made out of plastic container. It's clear with a dark lid. Should I get one that she can't see through so it's like another type of enclosure? I've only had her a week so this is new to me.