My lizard likes to burrow.

[Phil_W]

My gecko has always liked to have a little burrow in the corner of his tank. Occassionally I'll come down in the morning and ther ewill be a corner that he's been digging at. I've not thought much about this much until this morning, when I came down to see that he's been burrowing around his whole tank and made a right mess.

Yesterday, I put in a new water bowl (larger than the previous one, and rough, so he can rub against it when shedding), a little bowl for meal worms, and a new cave for him, as his old one was old and needed replacing.

He'd been digging around every side of his tank (normally only does one corner), there's mountains of substrait in the middle of the tank, he's dug all around his water bowl and the new bowl for his meal worms, and around most of his new cave.

I just have a few questions.

Why does he do this? Up until last night, he rarely came out from either of his 2 caves, did show any interest in me, hardly ever roamed around the tank. Last night, he roamed loads. Is this because of his new bits I put in? Do lizards not like change?

Also, should I put all the substrait back and flatten it all out? or should I leave what he's done alone?

As you can probably tell, I don't have much experience with lizards. This is my first, I've only had it about 5 months.

Thanks.