Please ID

[MDharmony]

Please ID this crab. Is it reef safe? Will it eat my corals ..etc?

Also, what is this? Is it reef safe? Looks like some type of slug....but some small tentacles are coming out of one end. Not sure.

 

[marrone]

Not sure about the crab and it's usually best to leave it out of your tank if you're not sure.

The bottom picture is a cucumber. They're reef safe but you need to make sure that the one you have isn't poisious as they can cause big problem if they are.

 

[noodleman]

not sure about the crab, but the second pic is a sea cucumber

 

[Tonyscoots84]

1. Black Fingered Mud crab <------- what it looks like to me
This guy is black in real life; this picture is misleading. His pinchers remind me of a Mithrax crab, but it has 'teeth' within the claws. Because he can't be trusted, he's been transferred into my refugium where I hope he'll be happy and trouble-free. Xanthids are Not Reef-safe.

 

[MDharmony]

Thanks everyone for all your help.

How can I tell if the sea cucumber is poisonous? I just happened to find him out of nowhere! hah

Tony..I guess I'll put him in my refugium too. Is that your crab or an image from another source? It looks like that but black in color. Thanks again.

 

[Tonyscoots84]

Thanks everyone for all your help.

How can I tell if the sea cucumber is poisonous? I just happened to find him out of nowhere! hah

Tony..I guess I'll put him in my refugium too. Is that your crab or an image from another source? It looks like that but black in color. Thanks again.

from another source... http://melevsreef.com/id/kritter2.html