What is it????

[kenman999]

Thx for the replies. I don't think it is the white star. I have roughly about 200 white dots. They look like little spiders. It has a solid white center which is pretty much a circle shape doesn't look like pods to me either.

[Aquaria]

Sounds like hydroid jellyfish kinda. how old is the tank?

[gobytron]

I would bet they are tunicates or sponges...

[kenman999]

It Looks exactly like hydroid jellyfish!!!! The tank is set up for a few months but all my live rocks and sand were transfer from a 3 years old tank.

Is it harmful should I remove them?

[Aquaria]

Far as I know from reading they dieoff once there food runs out mine where gone after 5 months give or take

[asylumdown]

I had them too for a while. Showed up on the glass for a few months and then they just disappeared. Wish the aiptasia would have been as polite.