Is it really a boy? What's the ideal frequency for changing the substrate?

[johnny888]

Every 1-2 months is fine (or if the dirt is 'muddy' or smells as previously stated); they won't get stressed out from that. They won't like it when they have to get moved out to get their habitat cleaned, but I always just soak mine in a tub of water and he seems to enjoy it.

Noted. Thanks a lot Mark.