ID on these guys

[Betex]

They came in with some live rock I purchased and curious on the good/bad

 

[Sharkbait19]

I’d wait for someone to confirm for the first two, but:
#1. Pencil urchin
#2. Sally lightfoot crab
#3 and #4. Brittle star
All are considered reef safe. The brittle star is especially harmless.

 

[Betex]

I’d wait for someone to confirm for the first two, but:
#1. Pencil urchin
#2. Sally lightfoot crab
#3 and #4. Brittle star
All are considered reef safe. The brittle star is especially harmless.

Thank you. I figured 3,4 were Brittle star but just wanted to check myself lol

 

[reefcleaners Verified Sponsor]

The crab is a bad guy.

 

[Steve and his Animals]

Yeah, that's no sally lightfoot. Probably some species of marsh crab. Where'd the rock come from, ocean wise?

 

[blaxsun]

It could be a sally lightfoot - it has the front claws tucked in towards its head in the image. You can always place him in the sump for the time being.

 

[reefcleaners Verified Sponsor]

One good way to check if it is a Sally Lightfoot is they have four yellow bands on each of their legs.