Sea Spider?? need help identifying

[iowacarrie]

A couple weeks ago I noticed a white, web/sponge-y looking growth on the side of one of my zoanthid colonies so decided to investigate. I discovered it wrapped underneath the rock and when I flipped it over found the underneath to be more than 1/2 covered in the growth. Even more shocking was what crawled out of the "web"... 8 legs, they appear to be sea spiders (there seem to be 4 or 5 on this rock). They are quite small, about 1/2 the size of a dime, and translucent. I'm assuming they will grow larger.

Can anyone help identify (pics attached)? They do not bother the zoanthid they're living under so I'm in no hurry to get rid of them but would love to know what strange little creatures they are.

 

[Reef lvr]

I'm pretty sure they eat zoa's...I think i would get rid of them!!

 

[MitchReef]

Yup, That's them!
CoralPedia.com :: PREDATOR - Zoanthid Eating Spiders

I would Google them for the cure....

 

[AndyDuckets]

if its in my tank and i dont know what it is... it meets its maker. atleast theres no damage yet- but i'd follow mitchs advice

 

[MoneyPit]

I agree zoa eating spiders. :sad:

 

[Troylee]

Man that's a zoa eating trantula!!!!! That looks huge compared to other pics I have seen lol...
You need to start dipping and quarantine all your corals....:(

 

[frenchie78]

would be nice snack for my christmas wrasse, he flips small rocks looking for anything that moves(micro stars, worms).

 

[shapermike]

manual remove it there slow moving

 

[_Alex_]

coral rx will kill them in one strong dip. but i would get them out asap they will wipe out zoa's fast i killed one on a frag i got a few months back my gf actually plucked it out with some tweezers

 

[KLR]

They are for sure sea spiders.......i cought one while i was down in the keys
Sea spiders love to eat zoas

I would take the advice above about how to get rid of them