What is this taking over?

hmmm not good. I dunno its spreading really fast and my tangs dont eat it maybe a better cuc will help?

 

How do i get rid of COLONIAL HYDROIDS - UltimateReef.com

looks like this pic almost the same

 

I have a huge CUC and nothing eats it. I have made progress by changing my lighting, installing and maintaining a dual gfo/carbon reactor, and lots of manual removal.
Read this thread if you are thinking it's fuzzy caulerpa.

http://www.3reef.com/forums/reef-cleaners/reef-cleaners-rescue-update-pg-4-a-100790.html

 

I think we have a winner VERMITID SNAILS maybe for the first pick? and colonial hydroids for pic number two

 

It might just be me but the picture in that thread looks like fuzzy caulerpa and when I look at google images of the hydroids they don't look like the macro algae in that thread.
You can always ask John Malony at reefcleaners.org. He is a sponsor here and is great with macro algae IDs if that's even what it is...

 

hmm I guess I'll pm him . thanks a bunch

 

I'm pretty sure it's colonial hydroids based on appearance and how quickly it spread. I would frag the corals off the rock. Then use a torch and melt them. Then re-cure in a separate tub of saltwater until there's no more ammonia in the water. Then put the rock back in your tank.

 

I kinda wanted to re scape anyway project for this weekend i guess

 

Oh wow! It's amazing what a fresh pair of eyes will see! As Inwall said, those are hydroids for sure. I'm not sure why I was dead set on caulerpa, probably because I was looking at the picture on my phone, but now that I look at it again, I'm sure that it's not caulerpa. Sorry for any confusion : )

 

+1 to colonial hydroids, the spanish shawl nudibranch eats them