Yellow polyps COTM April, '09

Discussion in 'Coral of the Month' started by missionsix, Apr 1, 2009.

to remove this notice and enjoy 3reef content with less ads. 3reef membership is free.

  1. missionsix

    missionsix Super Moderator Staff Member

    Joined:
    Sep 25, 2007
    Messages:
    5,734
    Location:
    Bend,Oregon - USA
    Yellow polyps
    parazoanthus gracilis
    [​IMG]
    Soft Coral
    We'll call it a soft coral along with everyone else. Although, it is not yet known.
    Phylum: Cnidaria
    Class: Anthozoa
    Subclass: Hexacorallia
    Superorder: Hexactiniida
    Order: Zoantharia
    Family: Parazoanthidae
    Common names: colonial polyps; sea mat
    Origin: Indo pacific
    Temperament: Mine have exhibited low to no aggressiveness. However, care needs to be taken regarding placement. These are members of the phylum cnidarians (they sting). These yellow polyps may also exhibit an aggressive nature at the rate of which they spread. Mine have done well living amongst a zoa rock.
    Water quality: As with all reef tanks the following are recommended parameters. Keep in mind that these are very hardy and can/will tolerate higher than preferred NO3 and PO4.
    Reef parameters and recommended/desired levels.
    Salinity/specific gravity-1.025ppm or 35ppt
    temp.-78-82
    PH-8.1-8.3
    Ammonia/NH3-0
    Nitrite/NO2-0
    Nitrate/NO3-0
    Phosphate/PO4-0
    Magnesium/Mg-1400-1500ppm
    Alk/dKH/KH-7-14.
    Calcium/Ca-380-500ppm

    Hardiness: These things are pretty resilient. I would recommend them as a great beginner coral. They have made it through some rough times in the last 2 years in my system. I have had them wither down to 2-3 polyps and come back to spreading #'s.
    Current/flow: Low to moderate flow. These corals are great for giving the appearance of the wind over a wheat field as the flow in the current.
    Foods/feeding: These corals are photosynthetic and rely on zooxanthellae/photosynthesis for a main source of food. They will accept small meaty feedings. I am just an underfeeder in general so, I hardly ever target feed mine.
    Lighting requirements: These corals require moderate lighting.
    Frag difficulty: Easy....... If you can break a rock then you can frag these. Larger colonies are done by using a hammer/chisel to break rocks and split them up. Rubble can also be placed near existing colonies for a more patient approach. They are also individual polyps that can be easliy removed and glued to frag plugs.
    Personal observations: I have only seen an incident once when my yellow polyps attached to an adjacent closed brain coral causing some damage. I also notice that they tend to end up in random areas of the tank. If either it is my cuc accidentally giving them a pluck, or, polyp bailout they end up starting a new gig somewhere else.
    Links:YouTube - fragging yellow polyps
    Zoanthids
    http://images.google.com/images?oe=...parazoanthus'&um=1&ie=UTF-8&sa=N&hl=en&tab=wi


    This was probably the hardest article I have written yet which has sparked some further curiosity into these "so called" soft corals. They aren't as simple as I have been giving them credit for. In fact they were just thrown towards zoanthids tentatively because of similarities. They are quite different though comparitively. They re-produce by budding. Polyps are different though as they are individual as opposed to zoanthids. I also found that some of the parazoanthus form symbiotic relationships with sponges from deeper waters. They offer protection from "sponge eating" fish with their sting. In return they perch atop the sponge collecting food living in nutrient rich areas. They are also ahematypic (require food).
    Thanks for reading......
    Please share pics of your yellow polyps if you have them.
    [​IMG]
     
    Last edited: Apr 3, 2009
    2 people like this.
  2. Click Here!

  3. steve wright

    steve wright Super Moderator Staff Member

    Joined:
    Feb 17, 2009
    Messages:
    11,283
    Location:
    shenzhen Guangdong PRC
    informative article, nice images once again. thanks Missionsix

    Steve
     
  4. jkat21

    jkat21 Bangghai Cardinal

    Joined:
    Feb 6, 2009
    Messages:
    1,379
    Location:
    S.I. N.Y
    Thanks for the info mission. I picked these guys up approx 1 1/2 wks ago hope the turn out ok. I already see im going to move them to an area with less flow.

    [​IMG][/IMG]
     
    1 person likes this.
  5. scvc

    scvc Bristle Worm

    Joined:
    Jun 14, 2007
    Messages:
    140
    Location:
    South Florida
    These definitely add a different color to your tank and are always noticed "waving in the wind." I have to literally weed them out on fairly regular basis. I have always been a little embarrassed to offer them to anyone due to how explosive their growth can be.
     
  6. missionsix

    missionsix Super Moderator Staff Member

    Joined:
    Sep 25, 2007
    Messages:
    5,734
    Location:
    Bend,Oregon - USA
    I notice with mine that they will keep closed if they don't like the spot they are in. This could be from a # of things including too much flow. All 3 colonies that I have seem to be pretty happy where they are.
     
    1 person likes this.
  7. coral reefer

    coral reefer Giant Squid

    Joined:
    Jan 9, 2006
    Messages:
    4,860
    Location:
    Wonderland
    Very nicely done!!!!!
    The only thing I would like to add is that these colonial polyps are symbiotic and not hermatypic-symbiotic is requiring light for their host zooxanthellae whereas hermatypic implies that the coral produces a calcareous skeleton that provides the framework for coral reefs.
    great job!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    Karma to ya!
     
    1 person likes this.
  8. Click Here!

  9. missionsix

    missionsix Super Moderator Staff Member

    Joined:
    Sep 25, 2007
    Messages:
    5,734
    Location:
    Bend,Oregon - USA
    Aha!!!!! Thank you for the clarification. I think I crammed to much stuff into my brain over the weekend8).
     
  10. Damsels R Cool

    Damsels R Cool Millepora

    Joined:
    Sep 4, 2008
    Messages:
    920
    Location:
    Greenacers,Florida
    here are mine

    [​IMG]

    they aer very hardy i keep mine on the sand because of the sting factor maby i'm being alittle cautious but i like them there

    also they grow like weeds made a separate rock for my uncle and grew it out in my tank for a weeek the orginal 3 polyps turned to 6+ in a week

    the last pic was taken on 3/21/09

    this one was taken last night you can see the growth

    [​IMG]
     
    Last edited: Apr 3, 2009
    1 person likes this.
  11. missionsix

    missionsix Super Moderator Staff Member

    Joined:
    Sep 25, 2007
    Messages:
    5,734
    Location:
    Bend,Oregon - USA
    I'm giving out karma for your parazoanthus gracilis pics.............................
     
  12. Stevet86

    Stevet86 Spanish Shawl Nudibranch

    Joined:
    Aug 27, 2008
    Messages:
    94
    Location:
    Eastern PA
    Thanks for the article, here are some of mine I got about 6 to 8 moths ago. I think I only got about six in the initial batch, they spread like wildfire. I have two groups of these in my tank, this picture is the biggest bunch.
     

    Attached Files:

    1 person likes this.