[Imogen]

I had the same issue with my little guy. He was in a 420 something square inch bin box when I first got him with the lid off - as I knew I was changing bins after 2 weeks so didn't bother to DIY the top. He would burrow non-stop each night and just loved it.

When I moved him into this new 709 square inch box he was in there for a solid 2 months and didn't burrow at all. Maybe once, but that was only that one time and never saw him do it again after.

However, he switched over to the detolf Thursday (2 days ago) and last night I finally managed to catch him burrow a teeny bit under one of his plastic hideys and it felt really good to see him do so.

Honestly, not sure what the cause is either myself and I'm not sure if he will keep at it; I hope he will cause I love seeing his little body dig by the see-through part when possible and watching him sliver along!

Thought I'd state this as you're not the only one! x