I was unsure what sub-forum this belonged in, so I chose this one. Apologies if it's not correct.
A few months ago, we moved one of our leopard geckos from a 10 gal to a 20 gal, and he seems very happy with the change! Much better than that cramped little tank.
It used to house an old female gecko of ours.
Now, here's where the problem comes in - he apparently still smells her, even after a thorough clean and him living in the tank for months. I can hear his tail rapidly vibrating against his hides every day.
Is this going to stress him out at all, or is it fine to just leave him be? He doesn't quite realize there's no girl around for him.