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i still believe it’s a sympodium coral
Was going to say, it looks like Blue Clove Polyps to me (though I can't see if the polyps have the little branches shooting off in the pictures) - they're noted for being incredibly invasive. Like, there are multiple articles warning people against them and some people consider tearing down the tank to get rid of them, invasive.
I can't find the post, but I recently read someone saying they had a particularly invasive brown strain of clove polyps that survived the fenbendazole treatment too.The only solutions I've heard for blue clove polyps aren't reef safe (they might kill off other things in the tank), but the most common treatment I've heard is Fenbendazole. Someone else used Lugol's Iodine, but they also lost some corals from that. Some people say kalk paste or super glue may work, but I haven't seen many people reporting success with it. The links below may help:
Invasive purple clove polyps
Does anyone know how to kill off invasive clove polyps? They’re starting to spread and envelop my acans and I don’t want them swallowing my garden.www.reef2reef.comEliminating Blue Clove Polyps with Fenbendazole
A few years ago, I purchased a rock that had some beautiful Space Monster zoas on it. It also had some Blue Clove Polyp on it as well. I saw the BCP, I knew it was there, I really didn't worry about it at all because I had no idea what it could become. Fast forward....its now everywhere. Its...www.reef2reef.com
Still looks like xenia to me, the video works on my device, heres a closeup screenshotXenia would have a stalk the polyps would branch out from, but this is definitely something like Clove Polyps, Sympodium, Sarcothelia, or Anthelia (I don't know how to tell them apart at this point, unfortunately).
Sympodium is known to be fine (i.e. not invasive) as it's relatively slow growing and easy to contain. Some of the others are fine, but certain kinds of Clove Polyps, Sarcothelia, and Anthelia are know to extremely invasive:
I can't find the post, but I recently read someone saying they had a particularly invasive brown strain of clove polyps that survived the fenbendazole treatment too.
Anyway, my advice would be to remove the rock and remove as many of the polyps as you can, rinse it, then put it back in the tank and observe it. If the polyps start coming back, try a more aggressive treatment.
Seeing the base there, it could be Xenia (which, while still known for spreading fast, spreads manageably/isn't nearly as invasive as clove polyps could be).Still looks like xenia to me, the video works on my device, heres a closeup screenshot
None that I know of at the moment.Thanks for the feedback.
I looked at the different species and it is the Thalassianthus. Is there a natural enemy for these?
Your best bet in this case would be to treat it like aiptasia or majanos. Kalkwasser paste in the center of each one will kill it, for example. Now I just need to find someone in the USA with your problem.Thanks for the feedback.
I looked at the different species and it is the Thalassianthus. Is there a natural enemy for these?