Hello, we have had our Hermit crabs for a really long time now maybe, five years.

Our hermit crabs are always active during the night but are overall pretty lazy when it comes to the day time. They just sit around in their shells.
However recently our 2 crabs have been out of their cage all the time even during the day. They seem to be next to each more then usual.

I was just wondering if this is a problem I should watch for or treat for as this is very out of the ordinary for them. Thanks for any advice!