Good point! They DO tend to lay in their cave all day, so UV-light isn't doing them much good. As long as they get vitamins and calsium, that is proberbly not an issue anyway?
I have a terrarium that is 100x50x50 cm. It is placed in a room with approximately 22° celsius. I have 2 leopard geckos in it. I have a heat mat covering 1/3 of the ground, heating the ground up to 35° celsius. The air temperature is now approximately 24° celsius, whitch is a bit low.
So here is...