Small but overtaking the tank...

[mbmikebray]

Does anybody recognize these small brown with cream centers polyps/corals- which send runners out and spread over everything, rocks, onto the sand, between the zoa,s causing them to partially close, I first saw them in a small area a cple years ago, when they started spreading I used to take rocks out and scrub in tank water to remove them, I have taken small rocks with zoa,s out and used tweezers and a magnifying glass to remove them. When out of the water they close up and can hardly be seen so very difficult, they close at night and look like a very fine net spread over the rocks...
Any ideas to remove/destroy? Anything I put in the dt gets covered within a few weeks!

 

[Dogshowgrl]

Sympodium? Some people love it (me) some people hate it. No real flaws other than takes over rock work. I love how fast it will make ugly rock have life but some find it invasive. Healthy LPS and softies don't seem to have any problem with it taking over them. But if you don't like it try to remove it now BC otherwise you will never get rid of it.

 

[heathlindner25]

Not sympodium. ....I always called those "daisy polyps ".

 

[mbmikebray]

Thanks for replies-these 'corals' don't look like anything I have seen in pictures (Daisy corals etc) they are very delicate with very narrow short stems! Never seen them for sale anywhere-they are more like unwanted 'weeds' growing everywhere....spreading on a web like structure..

I have posted more pics.. ty..

 

[Baldguy]

I was going to say colonial hydroids but they're not quite the same. My hydroids pop up in patches everywhere but don't take over whole rocks. Not growing into the sand like that either.

 

[homer1475]

Looks like clove polyps to me, which do come in several different color variations.

 

[billdogg]

My vote is for Sansibia. I have the blue morph in my tank. Although for the first 6-8 months after I set it up it seemed like it would over run everything, I have found that as other corals grow it loses the battle. Because of that, it has covered significant parts of my rock work and fills in empty spots quite nicely. It is nowhere near as problematic as GSP for the very fact that it does lose the battles. I find that it adds very nice color to the tank where otherwise it would just be bare rock. About the only thing I have found that it out-competes is nuisance algae.

 

[Ztous]

Looks kinda like jasmine encrusting polyps. They send out runners and spread quickly. They are a dull purple with green or white centers.