Grass growing on my live rock

Discussion in 'General Discussions and Advice' started by bob o, 17 Jun 2016.

  1. bob o

    bob o

    Joined:
    27 May 2016
    Posts:
    100
    Likes Received:
    1
    Location:
    Cape Town
    Hi all

    My first marine tank setup and think I got all the basics down.

    My tank is still cycling (2weeks) in and noticed a green grass like growth on one of my live rocks.

    Is this anything to be concerned about or is this normal? None of my other pieces of live rock have it on.

    Should I remove the piece or let it takes it course? As it is not appearing on any other piece of live rock.

    Thanks for advice in advance
     
  2. AdS Guest




    to hide all adverts.
  3. bob o

    bob o Thread Starter

    Joined:
    27 May 2016
    Posts:
    100
    Likes Received:
    1
    Location:
    Cape Town
    See attached 20160616_163039.jpg
     
  4. EFJ

    EFJ MASA Contributor

    Joined:
    13 Sep 2011
    Posts:
    1,523
    Likes Received:
    272
    Location:
    Dwaalboom 60km's from Thabazimbi
    That looks like Bryopsis. Nasty stuff and hard to get rid of. If it is, then it's better removing the rock than leaving it in your tank. Maybe @RiaanP can shed some light.
     
  5. bob o

    bob o Thread Starter

    Joined:
    27 May 2016
    Posts:
    100
    Likes Received:
    1
    Location:
    Cape Town
    Thanks for the advice EFJ

    I'm not sure what it is to be honest.

    Tank only cycled 2 weeks in

    So wasn't sure if this normal or something to worry about when the tank is established.

    In the pic upload, was trying to manually remove it from the rock, but it's virtually impossible, plucked scrubbed etc.

    Will it die off eventually? Or live stock be feeding off of it?

    Really wanted to start off with a healthy tank
     
  6. EFJ

    EFJ MASA Contributor

    Joined:
    13 Sep 2011
    Posts:
    1,523
    Likes Received:
    272
    Location:
    Dwaalboom 60km's from Thabazimbi
    Bryopsis is tuff as nails. I am not sure if there is any fish that eat it. From what I know the only way to get rid of it is a high magnesium level but so far I have only seen a couple of guys on the net that has had real success in getting rid of it. I know of guys that closed their tanks down because of bryopsis. The safe thing would be is to take the rock out and maybe leave it in a high magnesium mixed water tub but that is only a suggestion and not a guarantee.
     
  7. RiaanP

    RiaanP Moderator

    Joined:
    11 Aug 2008
    Posts:
    23,142
    Likes Received:
    1,228
    Location:
    Centurion
    is it hard gut like strings.

    If yes, they are really difficult to remove. Best is to cut it out with small knife, basically cutting a piece of rock with the root. Digging them out, root and all.

    Do it outside your tank. In a tub with some old tank water. Rinse them thereafter in another small tub. Do not want stray strands and spores re-entering the system.
     
  8. bob o

    bob o Thread Starter

    Joined:
    27 May 2016
    Posts:
    100
    Likes Received:
    1
    Location:
    Cape Town
    Thanks guys.

    Is it definitely bryopsis though?

    From what u guys can see on the pic?

    Should I try to get another closer pic?
     
  9. EFJ

    EFJ MASA Contributor

    Joined:
    13 Sep 2011
    Posts:
    1,523
    Likes Received:
    272
    Location:
    Dwaalboom 60km's from Thabazimbi
  10. bob o

    bob o Thread Starter

    Joined:
    27 May 2016
    Posts:
    100
    Likes Received:
    1
    Location:
    Cape Town
    20160617_232504.jpg
     
  11. bob o

    bob o Thread Starter

    Joined:
    27 May 2016
    Posts:
    100
    Likes Received:
    1
    Location:
    Cape Town
    Sorry for bad quality pic. It inside my tank and tried to zoom in closer
     
  12. EFJ

    EFJ MASA Contributor

    Joined:
    13 Sep 2011
    Posts:
    1,523
    Likes Received:
    272
    Location:
    Dwaalboom 60km's from Thabazimbi
    Can also be Cladophora prolifera which is ok. Check the link I gave you. It gives detail and pics on this one as well.
     
  13. bob o

    bob o Thread Starter

    Joined:
    27 May 2016
    Posts:
    100
    Likes Received:
    1
    Location:
    Cape Town
    Ok. Thanks a mill

    Will check it out now

    If it is bryopsis, I read that Kent Tech M Magnesium will sort it out?
     
  14. EFJ

    EFJ MASA Contributor

    Joined:
    13 Sep 2011
    Posts:
    1,523
    Likes Received:
    272
    Location:
    Dwaalboom 60km's from Thabazimbi
    Yeah, on RC most guys reckon that 'Kent tech M magnesium' seems to have more success.
     
  15. Dimi

    Dimi

    Joined:
    6 Apr 2013
    Posts:
    298
    Likes Received:
    7
    Location:
    Lonehill, JHB
    I had huge success removing bryopsis with a long spine sea urchins, but your tank is still cycling so cannot be added yet.
     
  16. bob o

    bob o Thread Starter

    Joined:
    27 May 2016
    Posts:
    100
    Likes Received:
    1
    Location:
    Cape Town
    Hi guys

    I had a look at cladophora, I think it might be that.

    Is bryopsis stiff green stalks of soft?

    Cause the short stalks on my rocks are hard stemmed.

    How do I tell the difference between the 2?

    The grass on the rocks not feathery at all, so can I assume it not bryopsis?
     
Recent Posts

Loading...
Similar Threads - Grass growing live Forum Date
Growing meat eating Grass? Beginner Discussions 31 Mar 2011
Green grass all over my rocks / sand and corals General Discussions and Advice 18 Jan 2014
Red grass? ID Needed 19 Mar 2013
Octpus like Creatures clinging onto my grass plants General Discussions and Advice 23 Aug 2012
sea grass Biological/Natural Filtration and Deep Sand Beds 16 Feb 2011
Green Green Grass Beginner Discussions 9 Feb 2011
I'm looking for seagrass & caulerpa please? Wanted 22 Oct 2010