Does anyo e know what are these?

[dottybacks]

I noticed there are many of these tiny creatures on the glass and rocks in my tank after I added some live rocks.

 

[DEWreefing]

Slug of some sort.

 

[SHNICI]

@KJ probably know them #reefsquad ?

(they look open on the back side, not like the most yellow slugs)

 

[KJ]

Elysia sp.

 

[Prairie Dog]

Looks like a nudibranch.

I had a couple recently on some frags from a LFS. Called them about it when i saw them in the transport bags. They said it was an algae eating nudibranch that they had in their tank, and they were harmless to corals.

 

[taricha]

What do you think they came in on? Live rock with algae? Where was it from?
My guess is maybe Elysia obstusa

http://www.seaslugforum.net/showall/elysobtu

 

[dottybacks]

So are they harmless?

 

[dottybacks]

So are they harmless?

 

[reef lover]

Yes

 

[KJ]

So are they harmless?

Yes

 

[dottybacks]

Ok thank you guys!

 

[Katrina71]

Those are really pretty! I'd love to find one of those little guys.

 

[SHNICI]

Those are really pretty! I'd love to find one of those little guys.

I got one of them last Saturday, it was in the LF peace which I bought xD really it look good but it's so small