Two IDs Are Much Appreciated

[clr_newbie]

First ID needed is for the small, star shaped brownish polyps. These seem to be spreading at an accelerated pace.

Second is the dark green almost black bubble algae. Care or removal Info is appreciated for both. Thanks in advance...

 

[blazeyreef]

im thinking the polyp is a star polyp of a sort

 

[roka64]

In the 1st pic, is it brown?
2nd pick, not too sure about the polyps (they look more like feather dusters), but it looks like they are in hair algae and in the back ground, that might look like aiptasia....
I would wait for other's opinions/knowledge.

 

[Fluff]

The first pic looks like valonia (bubble algae). Because of where it's at, and how clustered it is, removal would need to be done outside the tank. You want to twist them off trying not to pop them. Popping them releases spores that will make them spread. After removing them, you should give the rock a good rinse in sw before returning it to your tank. You can also try to keep it under control by limiting excess nutrients in your water. Namely phosphates. Emerald crabs are supposed to eat it but, they are hit or miss. The crab eating it, would pop it as well and I'd be concerned of it spreading then.

The second picture does appear to be some sort of star polyps.

 

[Devilishturtles]

Have to agree on the Valonia and star polyp verdict. Any chance for a closer pic of the polyps?

 

[melosu58]

I agree also

 

[DragonForce]

lots of bubble algae and a brown variety of star polyps.