Nudibranches

Discussion in 'General Discussions and Advice' started by Kevin, 27 Jan 2009.

  1. Kevin

    Kevin

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    Howzit Guys,

    Anybody got a good link to where I can ID some nudibranches.

    Last night, about 2am, I decided to check in on my tank. When I turned the lights on, apart from hundreds of bristle worms cruising the substrate, I saw a number of what looks like nudibranches cruising the rocks.

    I cannot get photos as they are brilliantly designed to blend in with the rock. They are flat, grey coloured with grey bristles on their backs.

    I need to try and find out if they are reef safe or not.

    Cheers
     
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  3. dallasg

    dallasg Moderator MASA Contributor

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    try and get pics, or use a tweezer to move them and take pics...

    look at Aquarium Life
     
  4. Apollo

    Apollo

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  5. Kevin

    Kevin Thread Starter

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    I found this one site, but its way to complex for me. I thought other guys who know more will appreciate it.

    http://www.seaslugforum.net/
     
  6. Apollo

    Apollo

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    Thanks Kevin,

    Yeah that site is a bit difficult to navigate unless you happen to know the species you are looking for.

    Good info though :thumbup:
     
  7. Kevin

    Kevin Thread Starter

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    Shotgun question.

    Without a picture so therefore no identification, are flatworms generally harmful to corals?
     
  8. Tony

    Tony

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    Sounds like a chiton to me. Google the word and see if it turns up.
     
  9. Apollo

    Apollo

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    Well yes , but then at the same time a resounding No.
    You see it very much depends on which species you are dealing with and hence identification is important.

    There are a large group of flatworms that are fairly benign to both corals and other lifeforms, but the great difficulty one has in making a positive identification sometimes makes it impossible to predict exactly what the effect on a reef tank will be.

    I have found 2 Nudi's and decided to dump them . Couldn't ID the critters and rather went the safe route of removing them.

    Sorry Kevin , I know this doesn't really help your cause , but IMO I would do the following:

    1. Try to ID the critter as close as possible
    2. Failing a positive ID , I would recommend removing them

    Just my thoughts;)
     
  10. Kevin

    Kevin Thread Starter

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    Could be possible, from some pics on the internet.

    There is not too much information on these creatures.

    Thanks
     
  11. Kevin

    Kevin Thread Starter

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    Thanks, only problem is that these buggers are nocturnal, extremely difficult to see, and I am not really in to stripping out all my live rock at 02:00 in the morning to get them out. So far, my polyps, mushrooms and leather coral show no signs that anything has been chowing them. A few sites mention that if these guys get disturbed they can release a toxin that can wipe out the fish (depending on which species of nudi, flatworm etc they are). I will have to adopt a 'wait and see approach'. If I can get one out easily then I will, but at the moment they all seem to be cruising arround the live rock right at the bottom of the heap.

    A few sites mention that they are very difficult to breed in an aquarium, so hopefully they will just run their course without chowing any corals.
     
  12. Apollo

    Apollo

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    Kevin,

    That's fine. I wouldn't go overboard here.
    Firstly , if they are Nudi's or flatworms and if you happen to see them - then pick them out. ( But not with your hands)
    Otherwise just leave them be for now. It took me a week to remove one of the Nudi'd I had.

    If on the other hand they are Chitons , leave them be. They are reef safe and are herbivores feeding mainly on algae.
     
  13. Shaun

    Shaun Retired Moderator

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    When last did you introduce any thing new to your tank, LR or coral, if it has been a couple of months then you should have noticed them eating your corals by now.

    The monti eating nudies seem to reproduce very easily.
     
  14. Kevin

    Kevin Thread Starter

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    My tank is still very new, only about seven weeks old. I got in a leather coral about two weeks ago and it is doing very well, no sign of any eating going on.
     
  15. sunburst

    sunburst

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    Sounds like Stomatella to me. They are good
     
  16. Kevin

    Kevin Thread Starter

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    I have a few of those in the tank, but the things I saw where about 2cm long and about 1cm wide and very flat. No shell, With lots of grey protrusions on their backs.

    I saw only one last night. Ugly looking bugger :)
     
  17. dallasg

    dallasg Moderator MASA Contributor

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    i think i have one too, was living in a hole in my LR, looked like a large bristleworm
     
  18. Kevin

    Kevin Thread Starter

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    Bristle worms, I have hundreds! I think I will turn my tank into a species tank and grow bristle worms!
     
  19. brentnorm

    brentnorm

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    Just don't touch them. Not a pleasant experience. There are a few diy traps you can build to catch them.
     
  20. dallasg

    dallasg Moderator MASA Contributor

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    my worm was about 5cm, white legs, grey body, and both ends tapered into a point
     
  21. sunburst

    sunburst

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    Mmmm sorry cannot help then. A picture would though:)
     
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