My experience with Velvet Nudibranch

Discussion in 'Reef Fishes' started by taegu2@aol.com, Jan 20, 2005.

  1. I have had a problem with Flatworms over the past year and a half which
    has gotten progressively worse. I considered getting a Velvet
    Nudibranch from Aquacon since they are billed as being able to reliably
    eat flatworms. I was a bit hesitant since I was concerned that the
    Nudibranch may starve if it consumed all the flatworms in the tank, but
    the progressively worsening problem convinced me that there would
    always be enough flatworms in my 150 gallon reef tank to feed a couple
    of the Nudibranchs. Well anyway they arrived today, and I must say
    that they are quite stunning. Dark black with bright bright neon blue
    stripes on either edge. After taking 4 hours to drip acclimate them,
    as instructed in Aquacons instructions, I put them in the tank. They
    were immediately very active in their movements. I watched with some
    resign as one of the Nudibrachs was grabbed by an emerald crab and
    pulled into the rocks before I could intervene. I rushed to grab a
    grasper to try and save the Nudibranch, and amazingly it emerged from
    the rocks. They must have some type of defensive mechanism (taste
    bad?). I was disappointed to see that they appear to avoid touching
    mushrooms since most of my flatworms appear to be resting on mushrooms.
    Anyway I will report back on my experience with these creatures.
     
    taegu2@aol.com, Jan 20, 2005
    #1
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  2. taegu2@aol.com

    RicSeyler Guest

    Velvet NBs?
    Lettuce Nudibranchs are generally sold as flatworm eradicators...
    I haven't heard of the Velvet's.

    taegu2@aol.com wrote:

    >I have had a problem with Flatworms over the past year and a half which
    >has gotten progressively worse. I considered getting a Velvet
    >Nudibranch from Aquacon since they are billed as being able to reliably
    >eat flatworms. I was a bit hesitant since I was concerned that the
    >Nudibranch may starve if it consumed all the flatworms in the tank, but
    >the progressively worsening problem convinced me that there would
    >always be enough flatworms in my 150 gallon reef tank to feed a couple
    >of the Nudibranchs. Well anyway they arrived today, and I must say
    >that they are quite stunning. Dark black with bright bright neon blue
    >stripes on either edge. After taking 4 hours to drip acclimate them,
    >as instructed in Aquacons instructions, I put them in the tank. They
    >were immediately very active in their movements. I watched with some
    >resign as one of the Nudibrachs was grabbed by an emerald crab and
    >pulled into the rocks before I could intervene. I rushed to grab a
    >grasper to try and save the Nudibranch, and amazingly it emerged from
    >the rocks. They must have some type of defensive mechanism (taste
    >bad?). I was disappointed to see that they appear to avoid touching
    >mushrooms since most of my flatworms appear to be resting on mushrooms.
    >Anyway I will report back on my experience with these creatures.
    >
    >
    >


    --
    Ric Seyler
    --------------------------------------
    "Homer no function beer well without."
    - H.J. Simpson
     
    RicSeyler, Jan 20, 2005
    #2
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  3. taegu2@aol.com

    KevinM Guest

    "RicSeyler" <ricseyler@SPAMgulf.net> wrote in message
    news:q_VHd.6805$8W4.4260@bignews6.bellsouth.net...
    > Velvet NBs?
    > Lettuce Nudibranchs are generally sold as flatworm eradicators...
    > I haven't heard of the Velvet's.



    Ummmm....no. Lettuce Nudis are for hair algae, Velvets (Chelidonura varians)
    are for flatworms.

    FWIW,
    Kev
     
    KevinM, Jan 20, 2005
    #3
  4. taegu2@aol.com

    Rod Guest

    >
    >Velvet NBs?
    >Lettuce Nudibranchs are generally sold as flatworm eradicators...
    >I haven't heard of the Velvet's.
    >


    actually the lettuce nudis (T crispata) are herbivores, while th evelvet (C
    varians) is a flat worm eater.
    They tend to disapear in tanks with pumps.
     
    Rod, Jan 21, 2005
    #4
  5. taegu2@aol.com

    Jon Guest

    >They must have some type of defensive mechanism (taste
    > bad?).


    Well they are one of the most venomous nudibranches known to man. They
    secrete a toxin called Hydrozoan Nematocysts.
     
    Jon, Jan 21, 2005
    #5
  6. taegu2@aol.com

    RicSeyler Guest

    Arrrgh, your absolutely right, for Bryosis and the like..
    Old Age Neuron missfire..... :)

    KevinM wrote:

    >"RicSeyler" <ricseyler@SPAMgulf.net> wrote in message
    >news:q_VHd.6805$8W4.4260@bignews6.bellsouth.net...
    >
    >
    >>Velvet NBs?
    >>Lettuce Nudibranchs are generally sold as flatworm eradicators...
    >>I haven't heard of the Velvet's.
    >>
    >>

    >
    >
    >Ummmm....no. Lettuce Nudis are for hair algae, Velvets (Chelidonura varians)
    >are for flatworms.
    >
    >FWIW,
    >Kev
    >
    >
    >
    >


    --
    Ric Seyler

    --------------------------------------
    "Homer no function beer well without."
    - H.J. Simpson
     
    RicSeyler, Jan 21, 2005
    #6
  7. taegu2@aol.com

    RicSeyler Guest

    That's right, I was thinking I got the Lettuce'es for Flat Worms
    but it was for Bryosis.

    I've had both of the plagues before LOLOL

    Rod wrote:

    >>Velvet NBs?
    >>Lettuce Nudibranchs are generally sold as flatworm eradicators...
    >>I haven't heard of the Velvet's.
    >>
    >>
    >>

    >
    >actually the lettuce nudis (T crispata) are herbivores, while th evelvet (C
    >varians) is a flat worm eater.
    >They tend to disapear in tanks with pumps.
    >
    >


    --
    Ric Seyler

    --------------------------------------
    "Homer no function beer well without."
    - H.J. Simpson
     
    RicSeyler, Jan 21, 2005
    #7
  8. taegu2@aol.com

    KevinM Guest

    "RicSeyler" <ricseyler@SPAMgulf.net> wrote in message
    news:GPaId.75611$zy6.14713@bignews5.bellsouth.net...
    > Arrrgh, your absolutely right, for Bryosis and the like..
    > Old Age Neuron missfire..... :)



    No problem...I get those, too. Patron Silver (tequilla) doesn't help either.

    Kev
     
    KevinM, Jan 21, 2005
    #8
  9. Well I can state unequivocally that the Nudibranch does indeed eat
    flatworms. I have been watching it intently over the past day, and as
    I mentioned, I was disappointed that the nudibranch appeared to avoid
    touching mushrooms, since most of my flatworms are resting on
    mushrooms. Today, it was moving on the aquarium acrylic surface where
    I watched come across a flatworm. Upon touching the flatworm, both the
    nudibranch and flatworm reacted. The Nudibranch quickly consumed the
    flatworm. Another interesting observation was when the nudibranch
    floated onto the surfact of my Crocea clam. When the clam reacted by
    ejecting a blast of water, the nudibranch appeared to eject what looked
    like black ink. I wonder if this also is some type of toxic substance
    to discourage predation.
     
    taegu2@aol.com, Jan 22, 2005
    #9
  10. taegu2@aol.com wrote:
    > Well I can state unequivocally that the Nudibranch does indeed eat
    > flatworms. I have been watching it intently over the past day, and as
    > I mentioned, I was disappointed that the nudibranch appeared to avoid
    > touching mushrooms, since most of my flatworms are resting on
    > mushrooms. Today, it was moving on the aquarium acrylic surface where
    > I watched come across a flatworm. Upon touching the flatworm, both the
    > nudibranch and flatworm reacted. The Nudibranch quickly consumed the
    > flatworm. Another interesting observation was when the nudibranch
    > floated onto the surfact of my Crocea clam. When the clam reacted by
    > ejecting a blast of water, the nudibranch appeared to eject what looked
    > like black ink. I wonder if this also is some type of toxic substance
    > to discourage predation.
    >


    I've never knew that flatworms are pests to a reef tank. In what way?

    Also, I have some worms that came with the LR from Tampa Bay. They are
    beige colored, with white little feet. It resembles a centipede, but
    with the feet on the sides. I don't see any eyes or mouth, but it comes
    out of its hole during feeding time. Does this constitute a flat worm pest?

    TIA,

    Rich



    --
    "Dum Spiro, Spero."

    As long as I breath, I hope.

    Cicero (Ancient Rome)
     
    Richard Periut, Jan 22, 2005
    #10
  11. Flatworms are not harmful but can expand to epidemic numbers and become
    unsightly, and cover the surfaces of corals. Currently I have a large
    scolymia that is almost completely covered with flatworms.
     
    taegu2@aol.com, Jan 22, 2005
    #11
  12. >Subject: Re: My experience with Velvet Nudibranch
    >From: RicSeyler ricseyler@SPAMgulf.net
    >Date: 1/20/2005 5:11 P.M. Eastern Standard Time
    >Message-id: <q_VHd.6805$8W4.4260@bignews6.bellsouth.net>
    >
    >Velvet NBs?
    >Lettuce Nudibranchs are generally sold as flatworm eradicators...
    >I haven't heard of the Velvet's.


    Lettuce nudis are sold as bryopsis eradicators. Velvet nudis eat flatworms and
    only flatworms.
    Thanks,
    JP
    www.justphish.com
     
    JustPhish0911, Jan 26, 2005
    #12
  13. Final update: Both nudibranchs have vanished. I actually never saw
    either one after 3 days, but I thought that they had either gone into
    the rocks, or had gotten into the overflow box. Anyway that was weeks
    ago, so I guess they either died, or got sucked into the pump.
     
    taegu2@aol.com, Feb 9, 2005
    #13
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