Got a new leopard gecko, not quite an adult, which was kept in a tank with vermiculite as a substrate. I was told it should be fine on vermiculite as that is what it was hatched on, but she isn't eating very much. Faeces seem fine, she's reasonably active and calm, only appetite is low. The two possibilities I can think of are impaction from the vermiculite or that the house is very cold after the recent weather, so its been hard to keep the tank temp up at night. Loathe to empty out the tank completely and stress her out to change it if unecessary, she's still jumpy when handled. Any help?