High PO4 and SPS are ok

Discussion in 'SPS Corals' started by rakabos, 6 Dec 2011.

  1. rakabos

    rakabos

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    Last edited: 6 Dec 2011
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  3. Perky Pets

    Perky Pets Sponsor

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    Great timing - this is exactly what the Red Sea guys said about there coral "growth" or "colour enhancing" programs.

    So at the very low phosphate level the zoox dissapier and the coral can be expected to get there full potential colour ( without the brown zoox ) in about 4 - 6 weeks if all the ellements needed are given to them.

    Another interesting thing was that they took 45 different hard coral and mashed the hard skeletal parts up and did a spectro analisis of each and found that each one had almost the exack chemical breakdown.

    The list of ellements and the concentration was noted and put into there coral care program.
     
  4. rakabos

    rakabos Thread Starter

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    When you think about it, it makes sense. More zoox for the coral so they tend to brown a bit, but also grow faster with more food available.
     
  5. dallasg

    dallasg Moderator MASA Contributor

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    all animals need phosphates, its just the higher it gets the more damaging
     
  6. jaquesdp08

    jaquesdp08

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    Thats the idea behind zeovit, to run low nutrients and near 0 phosphates to get the colours to pop.
     
  7. irie ivan

    irie ivan MASA Contributor

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    It stands to logic that elevated levels will lead to increased growth rates. I can picture it: like a mass orgy of feasting, gluttony and procreation as the algal symbionts scavenge, grow, multiply and provide energy to the host. I do however suspect this will only be a temporary rection, and the level of 0.5ppm is not unusual in aquaria.
    There are however a few considerations:

    - Accuracy of our testing methods leaves a lot to be desired, so how sure are most of us which don't have photometers of our readings.
    - Elevated levels of nutrients spur algal growth.
    - Extended elevated levels will inhibit calcification.

    The question is, which organisms will grab the available PO4 ions first, algae or corals? We all k ow how fast algae can grow.

    There are various studies which show the negative effects of PO4 on calcification:

    Even though very few of us breed corals, still relative:
    DOI 10.1007/s002270100668

    JSTOR: An Error Occurred Setting Your User Cookie

    And back to the algal concerns:

    ScienceDirect - Marine Pollution Bulletin : Coral death from sewage and phosphate pollution at Aqaba, Red Sea

    Effects of elevated nitrogen and phosphorus on coral reef growth. Kinsey, Donald W.; Davies, Peter J. Limnol. Oceanogr. (1979), 24(5), 935-40.

    And then some old hobbyist literature:

    http://reefkeeping.com/issues/2006-09/rhf/index.php#5

    Come to think of it.............

    Elevated levels of PO4 and NO3 in coral propagation setup, once growth satisfactory, slow acclimitization to nutrient starved, light blasted and flow wahsed colouration tanks..... hmmmm, i see my garden shed being utilized effectively.......
     
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