Climbing the lid

[Petal]

I have a mesh lid covered with seran wrap. One of my crabs has figured out a way to get to the top of the tank even though the decorations dont really reach that high and I dont think he knows how to get down. I dont want to open the top of the tank because I am scared he'll retract into his shell and fall. Do I just let him figure this out or is there something I can do?

[Petal]

Update: He dropped down into some fake plants and didnt crack his shell still dont know how he got up there

[curlysister]

Sometimes crabs have been known to climb the silicone that holds the tank together in the corners!

[Petal]

Cool! He's climbing the fake plant in there right now, I didnt thnk he would be able to so I figure thats how he got up there