I have a Cali King, almost 3 years old now. Before you go asking husbandry questions, yes, the enclosure he's in is perfect for a cal king as has been the same for over a year now since I moved him to a 20g long glass tank.

He's eating, drinking and shedding fine, but the weird thing is he's started to really push his noce against the glass with his face.

He used to do it every now and then but lately (the past month) it's gotten alot worse. He's REALLY pushing his face against the glass to the point he makes his nose turn pink. You can tell when you see him doing it that he's putting alot of effort into it.

As any owner would, i'm getting concerned. I don't know what this means and if anyone has any idea / advice it would be greatly appreciated! I am using Aspen for bedding and have been since I got him. He's been eating f/t mice since I purchased him almost 3 years ago.

Like I said, it would be easy if something changed recently but nothing has. I've got no idea what to do
Help!