ID please!
- Thread starter adamPL
- Start date
Jim Morrison
New member
i dont no what to say you could try brushing them off with a brush or turning the rock over but other than that im out of ideas
Vapour1ze
I'm an Addict.
,honestly if you brush them off I guarantee they come back.... did you let them spread that bad or did it start small? honestly I dont know how bad it is, but worst comes to worst if you really hate the appereance and thats the only thing on the rock and easy to remove the rock(s) torch em... not sure... +1 though on the anthelia
hoosierpat
New member
Not hydroids. I've seen them on tons of pieces of live rock from indo. They are some kind of colonial polyp with connected stolon tissue. Definitely a coral. They don't get any bigger than that. They are also fairly non aggressive unlike hydroids. I don't know that you need to get rid of them unless they are killing off your corals. Otherwise they are kind of nice for covering bare rock.
Gangsta Nemo
New member
Looks exactly like anthellia maybe micro anthellia? I know there is micro clav... just my guess. Not hydroids...
greenbean36191
Premium Member
They're definitely not hydroids.
Clavularia or a close relative is the best guess.
You can rule out Anthelia by looking at the polyps when they're closed. Anthelia is contractile like Xenia, meaning that the stalk shortens and the crown of tentacles close, but they're still visible.
Clavularia and it's relatives on the other hand are retractile, meaning that when they close, the tentacle crown is drawn inside the base of the stalk like you see with GSP and zoanthids (although they're not related).
Regardless of what they are you're very unlikely to find a predator of them that won't pose a threat to other corals in your tank. Their natural predator is likely a nudibranch, but without knowing exactly what they are there's no chance of figuring out what the right slug is. Even if you did know what they were, chances are still slim we would know what slug you needed. In either case you're not going to be able to locate it.
About your only options are to take care of them chemically yourself the same way you would deal with nuisance anemones- kalk, Joe's juice, boiling water, etc.
Clavularia or a close relative is the best guess.
You can rule out Anthelia by looking at the polyps when they're closed. Anthelia is contractile like Xenia, meaning that the stalk shortens and the crown of tentacles close, but they're still visible.
Clavularia and it's relatives on the other hand are retractile, meaning that when they close, the tentacle crown is drawn inside the base of the stalk like you see with GSP and zoanthids (although they're not related).
Regardless of what they are you're very unlikely to find a predator of them that won't pose a threat to other corals in your tank. Their natural predator is likely a nudibranch, but without knowing exactly what they are there's no chance of figuring out what the right slug is. Even if you did know what they were, chances are still slim we would know what slug you needed. In either case you're not going to be able to locate it.
About your only options are to take care of them chemically yourself the same way you would deal with nuisance anemones- kalk, Joe's juice, boiling water, etc.
