Need help ID'ing some crabs

[mww00ds]

Just got some live rock from Gulf Live Rock and need some help identifying some crabs, thx

The last two pic are the same crab

 

[JoJosReef]

Hard to tell in that first pic. I've gotten white porcelains from gulf rocks. Put that guy in some saltwater in a cup and see if he has fans. Also count if it has 6 legs (and two appendages on the back) or 8 legs. The former would be a good tell that it's a porcelain.

 

[mww00ds]

Hard to tell in that first pic. I've gotten white porcelains from gulf rocks. Put that guy in some saltwater in a cup and see if he has fans. Also count if it has 6 legs (and two appendages on the back) or 8 legs. The former would be a good tell that it's a porcelain.

I had him in a small jar and couldn't see any fanning. But he's also a quarter inch at best. So maybe. The bottom crab I'm trying to get a better shot of as he's around an inch. Hoping he come out more now that the lights are off.