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What type of fish is in the middle of CaptiveReefs (top left corner of page...hint it is the main character in Finding Nemo) )

Z's and P's filter feeders or not


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  1. #1
    whitetiger61 - Reefkeeper CR Member
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    Rick

    Default Z's and P's filter feeders or not

    I have been wondering about this for some time..I have always heard and read the zoa's and paly's feed off the water column..for the past month i have been target feeding mine and have noticed a uptake in growth in all my zoa's and paly's..different varations take the food different than the next one. for example..my captian america and purple death palyscomplete engulf mysis shrimp.where as my green bay packers like it diced up more finer..feel free to chime in on this subject if you have experienced this or just have a comment in general

    Rick

  2. #2
    Jarred1 - Reefkeeper CR Member
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    Default

    I am almost sure that zoas and palys will take up nutrients from the water.

  3. #3
    mallorieGgator - Reefkeeper CR Member
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    Default

    I'm not sure about them filter feeding out of the water but I do know that they seem to grow more with feeding and water movement. The reason paly's and large zoas take in larger food is because they are a larger polyp with larger mouths IMO. The smaller zoas can't eat large pieces so they only take small pieces.
    Mallorie Gaughran- U.F. Animal Bio Undergrad
    55 Gallon SPS and Zoanthid Dominant Tank with a few LPS and NPS here and there.

  4. #4
    Sir Patrick - Reefkeeper A2 Club Coordinator
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    Default

    I have found that most zoanthids can/will remove whatever nutrients they can catch out of the water column- although it is almost not noticable at all, while most palythoa will actively take large chunks fed to them.

    One of the reasons that polyps are said to prefer "dirty water". I like to think they prefer higher nutrients and available steadily available food sources.

  5. #5
    larryandlaura - Reefkeeper
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    My zoas are feed and I agree they do absorb nutrients from the water!!!!!
    Hi my name is Larry and I'm a coral addict!

  6. #6
    MUCHO REEF - Reefkeeper CR Member
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    Default

    Any of you other zoagies out there want to weigh in on this topic?
    Please stop fragging your frags.......you'll eventually do more damage than good. Just let them grow.

  7. #7
    Jarred1 - Reefkeeper CR Member
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    Default

    While somewhat variable, in no case does light alone supply anywhere near the total energy budget of any zoanthid. "Furthermore, much of the carbon products produced by photosynthesis are used in the production of mucus, making external sources of carbon containing compounds, in addition to non-photosynthate material imperative to the health and survival of zoanthids. Zoanthids feed on particulate matter, organic macromolecules, bacteria, plankton, and even larger prey. To what degree each food item can theoretically comprise the natural dietary intake of zoanthids is anyone's guess, but it would appear that most tank conditions are able to supply the required external nutrition to a tolerable level based on the success of colonies in the aquarium" Eric Borneman.

    If you like zoas and palys you should read this article:
    Reefs.org: Where Reefkeeping Begins on the Internet - Zoanthids by Eric Borneman Aquarium.Net January 1998
    "It happens, and as long as the clowns out there keep paying top dollar, they will stay top dollar. Just a way of life, imagine how much cheaper a Tahoe or Yukon would cost if the word 'bling' was never invented..."

  8. #8
    MUCHO REEF - Reefkeeper CR Member
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    Default

    Sorry Jarred, just back from vacation and just saw your post.

    Yes, EB's article is one of my all time favorites and I love quoting it. I agree that external feeding as a secondary yet complementary source of nutrition is vital and further validates the need for medium to high but not overpowering curent and thank you for sharing my friend.

    Good stuff larryandlaura and Sir P.

    Great topic Whitetiger.

    Mucho
    Last edited by MUCHO REEF; 07-25-2011 at 11:42 PM.
    Please stop fragging your frags.......you'll eventually do more damage than good. Just let them grow.

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