I have two leopard geckos that I've had for about two months, Shadow and Luci (I'm pretty sure they're both males but not 100% on Luci). I recently swapped from the reversible substrate pads to a mixture of coconut fiber and sand. When I swapped Luci has been staying in the water dish most of the time and Shadow has been laying in a 'ditch' he dug out next to the water dish. Both on the hot side of the tank. Shadow will still go into the hide on the cool side but Luci will not. Both are still eating like normal. Shadow shed on April 1 and I'm not sure about Luci since I've been working. It's hard to tell when Luci is ready to shed anyway since (s)he is an albino. I've checked for mites but haven't seen anything. Has anyone else had something similar happen?