Jacob is in a tub under a heat lamp (I will be upgrading both my tanks to flexwatt as soon as I get some money). His substrate is eco-earth, mainly because he LOVES to dig tunnels and I wouldn't deny him that. His temps are 75 on cool side, and mid 80s on warm side - again, that will be improved when I upgrade the whole system.

But here's the thing: he has been digging himself to the bottom of the cool side where the temps are lowest. I pick him up and he feels cold! But he could easily dig a tunnel on the other side and be warmer . He's eating and defecating normally, is very active, and appears perfectly healthy. My question is, why is he doing this? Do any of your corns do this?