Live Sand Hitchhiker ID Help

CheifReeferNB

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If recently purchased some live sand from gulf live rock. It’s a very rubble like substrate and has come with a ton of critters. I need some help identifying them. I’ve attached some images below. Any help would be appreciated!

Crab 1:
Camouflaged red crab. Furry legs and a little red hat looking mark. Kind of looks like a jumping spider. Clinging on to that rock for dear life would not budge when I moved him around.
20251226_001317_081F1404-6375-4353-81E3-18E39300C3E0.png

20251226_001336_C9CECC7D-2DAF-49E6-AD07-6B9977CD0C98.png

Crab 2:
Little all white crab. Scared of light and hides in sand.
20251226_001407_750BFA4A-E172-4A13-A14B-79DA34C2BB9B.png

20251226_001407_5776D965-7A56-4266-9E2A-88ECEF95C7B6.png
 
I’m thinking crab 1 is a decorator crab and the second one is a small porcelain crab. Can’t quite tell though.
For certain they are interesting, biodiverse & probably a beneficial member of CUC.
 
I would isolate them in some container they can’t crawl out of like a like tupperware side dish or plastic container. Until you’re sure they not harmful.
 
Hitchhiker crabs are definitely a trust, but verify, situation to me.
 

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