Id please, good or bad

[koikeeper]

2 hitchhikers picked up today, good or bad?

 

[Alexraptor]

First one is a Stomatella snail, super good.

Unsure of the crab, but it could be a Mithrax crab of some sort, judging by the claws. Assuming of course you're not talking about all the mysids zooming around, which are also very good!

 

[kjkszpj9]

can you check if the crabs claw tips are flat and not sharp? if they are flat they are algae eating crabs.