identify these

[jjkim]

these were attached to my live rock today when i bought them.
i cant seem to know what they are

 

[xxxAngeloxxx]

The third picture is a aiptasia anemone also know as the glass anemone.

NOT recommended for any saltwater aquarium system. Hope this link helps you out.

http://saltaquarium.about.com/cs/msubpestaiptasia/p/aiptasia.htm

 

[Mike389]

first is a sea cucumber

 

[xxxAngeloxxx]

first is a sea cucumber

1+ its reef safe but Poisonous when it stressed out.

 

[jjkim]

should i remove them or is it safe to have these things in my tank?

 

[YaBaBo]

Lmao I told you! Sea cucumber. :]

 

[dubs]

the cucumber i wouldnt worry about the aptasia if i was u i would start the battle now those thing are a pita and they can take over u whole system

 

[jjkim]

I just decided to take out tht live rock and keep the yellow cucmber only

 

[garys reef]

good choice

 

[rbtwo4]

I think first pic is a nudibranch second pic can't see third aiptaisia

 

[Boomer]

rbt is correct. Matter of fact it is a Chromodoris sp such as this example