Two good thoughts. Most of the time leopard geckos just don't smell. If there is a dead cricket or two, or (my first thought) the animals are sick, there will be a distinctive smell from their container. You may wish to isolate the gecko(s) for a couple of days to monitor both it's eating and its poop. If it is either not eating or its poop is greyish you may have a problem with the gecko.

[ Show Entire Thread ]