HCA: Hermit Crab Association

I am a new crabber and got my crabs about a week ago . I have two crabs and the bigger one is gone. I am assuming he is molting but see no sign of him, and if he is, I don't know where. Any tips for what to do would be awesome.

Try not to worry! Crabs can be down for a long time, especially if they are big. Just try to keep your hopes up and nose alert for any fishy smells! Welcome to HCA!
Edit: DO NOT disturb him though, is crabbing 101! Like I said, try not to worry!

Thanks! I will definitely be on the watch. Hopefully he will molt successfully!

As long as you have proper substrate that is deep enough, you don't have to do anything. They will dig down under the sub to molt, to de-stress, or sometimes just for fun.