Help, fast!

[Katy410]

I came downstairs today to clean out the tank, which has a bit of algae, but is coming along quite well, when I noticed something strange. My emerald crab was lying flat on it's back, with it's belly "open". This was new. I decided to flip him over, and push him out into the open while I was at it, since you know how you need to flip Turbo snails. But he hasn't budged, and I am beginning to worry. I'll flip him over right now if I made it worse, but please help fast? Thank you!
~Katy410
The crab. Sorry for bad quality.

 

[Tate]

Maybe that's his old shell. Correct me if I'm wrong but I'm pretty sure emeralds molt.

 

[Katy410]

They do, yes. But I haven't had him molt since I got him, which is 4 or 5 months. And, I haven't seen the new crab. Or, not new, but "freshly molted".

 

[BigRedsReefs10]

Sounds like a molt, they hide for a couple days after while the new shell hardens

 

[Katy410]

Should I remove the molt? I'm having a big party this weekend, and the little shell is quite creepy. Do you think he'll be back out and about by then?

 

[54seaweed]

I always leave the molt cuc takes care of it

 

[Katy410]

Ah, thank you so much. I was worried sick there for a moment.