Help Identifying this? Baby starfish?

[mkarston]

Recently, everyday my front glass is filled with little white dots. After looking at each closer, it appears to almost be in the shape of baby brittle starfish. I don't really figure that is what it is but the best way I can describe them.

Any thoughts?

http://reefcentral.com/gallery/data/500/37565WhiteDots.jpg

[lvreefer]

Jellyfish

[iaJim]

Harmless?

[sunfish11]

hydroid jellyfish. They are harmless and their numbers will dwindle to nothing over time.

[mkarston]

Thanks for the replies. Any information as to what caused such a break out? Adding new corals attached to live rock, etc?

[sunfish11]

I would bet that was it. Usually I see these when setting up a new tank full of new live rock.

[Shnabbles]

wow my new tank had hundreds of these things... i thought they were just pods...

are they harmless?

[Shnabbles]

wow my new tank has hundreds of these things... i thought they were just pods...

are they harmless?

[Paintbug]

they are pretty much harmless. some fish will eat them.

[Frick-n-Frags]

usually a boom-n-bust population type of affair :D

so enjoy them while they last.

[dippin61]

they are kinda like the pineapple sponges when it comes to new tanks... they show up for a while, then disappear.