ID: weird reddish algae?

Discussion in 'Other Reef Talk' started by jepoy, Aug 18, 2018.

  1. jepoy

    jepoy Supporting Member

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    So I’ve been battling GHA the past couple of months, but now that the GHA is slowly going away I’ve noticed a weird red hairy thing on one of my rocks. I guess I’m just noticing them now because they’ve always been buried under the GHA. What’s concerning is that I don’t think this is algae.. it retracts into the rocks when touched.
    Help! Should I remove this rock immediately?
    [​IMG]
    [​IMG]


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  2. JVU

    JVU Supporting Member

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    Kinda hard to see clearly in those blue pics, can you take some with white light?

    My first guess is bryopsis.

    Luckily there is now a complete and easy cure for this previous scourge- Fluconazole.
     
  3. Vhuang168

    Vhuang168 Supporting Member

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    Looks like cloves


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  4. MolaMola

    MolaMola Supporting Member

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    If you don't think it's algae, could it be Anthelia coral? The second pic totally looks like pink Anthelia.
     
  5. OnTheReef

    OnTheReef OnTheReef (Eric) Supporting Member

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    Those look like marine hydroids.
    marine-hydroids.jpg
     
  6. jepoy

    jepoy Supporting Member

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    Here’s a better pic with the flash on. Again, it retracts when touched.. if that helps identify it easier. Thanks!
    [​IMG]


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  7. jepoy

    jepoy Supporting Member

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    I looked up anthelia pics and they look similar but these are much smaller. It took max zoom for my iPhone to take those pics.


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  8. jepoy

    jepoy Supporting Member

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    I googled cloves and none looks like what’s in my rock. These are much smaller and not so pretty


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  9. jepoy

    jepoy Supporting Member

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    Do you know If there is a reddish bryopsis?


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  10. MolaMola

    MolaMola Supporting Member

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    I do not think Anthelia retracts and yeah, I think they are much larger than hydroids, so maybe hydroids.
     
  11. JVU

    JVU Supporting Member

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    I don’t think it is bryopsis anymore. I didn’t notice that you said it retracts when touched, which excludes bryopsis and other algaes I know of.

    That better pic shows it more clearly, doesn’t look like an algae. More like small anemones, corals, or hydroids. Not sure.
     
  12. jepoy

    jepoy Supporting Member

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    That’s pretty close. Should I remove the rock?


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  13. OnTheReef

    OnTheReef OnTheReef (Eric) Supporting Member

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    These little buggers are notoriously difficult to get rid of. Like Aptasia, little bits that break off can start a new colony. If it were my tank, I'd pull the rock and treat it in quarantine.
     
  14. Chromis

    Chromis Supporting Member

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    That looks like anthelia to me, I would throw the rock out unless you want to spend a lot of time scraping it repeatedly until it stops growing back.
     
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  15. NanoCrazed

    NanoCrazed Supporting Member

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    Agree with chromis... not hydroids but xenia... if it's on an island, it's fairly contained but if your rock is attached to bigger pieces, expect a takeover... or if pieces break off... then will spread like weeds

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  16. Coral reefer

    Coral reefer President

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    Chromis said anthelia, which is different from Xenia, I ageee it look a way more like anthelia than Xenia.
     
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  17. MolaMola

    MolaMola Supporting Member

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    I thought Anthelia at first glance, but Anthelia doesn't retract into the rocks when touched, does it?
     
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  18. rygh

    rygh Supporting Member

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    +1 on Anthelia
    Clean that rock out.
     
  19. NanoCrazed

    NanoCrazed Supporting Member

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    Lol... sorry. Meant anthelia...was responding quickly before takeoff. :)

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