HCA: Hermit Crab Association

I got a heater recently for my tank( i had one on bottom but learned it was fire hazard) and was wondering if the sudden change in temp would make them stressed, its about a five degree difference, from about (started at)68 to 73-76 degrees F. Will they go into shock or something how should i introduce it to the crabbies??

No, they'll be okay with that small adjustment (even if it was a bigger jump it would be okay) and it's better to get them warmed up and comfortable than to wait.

Ok, thanks for the advice i turned it on and am consistently checking temps also watching my hermies for any weird issues.