SPS (Receding tips and general decline)

Discussion in 'SPS Corals' started by Submariner, 15 Jun 2007.

  1. Submariner

    Submariner

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    I am struggling at the moment to keep all my SPS healthy.
    There as been a steady decline recently in the overall health of some of my SPS

    And i am struggling to find out the problem.

    Tested the water

    nitrate .10

    PH 8.4

    KH 10

    Calcium 410

    Doing 75 litres a week water changes. Using SERA salt.

    Currently +- R6000 worth of SPS i could lose.

    Please any ideas will be appreciated.:41:

    I am currently thinking it could be a toxin or even a hitchhiker :014:
     
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  3. Mekaeel

    Mekaeel Moderator MASA Contributor

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    submariner,is there a loss in color or growth has reduced.
     
  4. Submariner

    Submariner Thread Starter

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    Hi Mekaeel

    The colour is very good and good steady growth.
     
  5. Mekaeel

    Mekaeel Moderator MASA Contributor

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    so in which way exactly is the SPS unhealthy?
     
  6. Alan

    Alan Admin MASA Contributor

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    I am also a little confused here, what exactly is happening
     
  7. Bob the (reef)builder

    Bob the (reef)builder

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    Ya I'd say good colour and growth are pretty good indicators of coral health.

    Give us some more clues.
     
  8. Submariner

    Submariner Thread Starter

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    I have a few sps that seem fine good growth nice healthy tips.

    The thing thats got me baffled is that three of the sps have receding tips and tissue loss yet seem to have good polyp extension further down the branch of the coral.
     
  9. Bob the (reef)builder

    Bob the (reef)builder

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    Are they very high up against lights or just moved up, or new to the system from a lower light system.

    Sounds like burning, do you have pics.
     
  10. Mekaeel

    Mekaeel Moderator MASA Contributor

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    yeah bob is right it sounds as i the corals are burning.what bulb was it originally under?and what do you have in your system?
     
  11. leslie hempel

    leslie hempel Moderator MASA Contributor

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    alos maybe a stupid question but necessary: do your bulbs have a UV shield? i lost frogspawns that were 120% after i left my uv shield on my 150w hailides off for a day!!!....
     
  12. Submariner

    Submariner Thread Starter

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    All my light have 6mm glass shields on them.
     
  13. Submariner

    Submariner Thread Starter

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    To answer you're lighting question Makaeel.

    The tank the corals came from had more light than my tank.

    The corals are not getting to much light.

    So zi plot thickenz.
     
  14. djmurray

    djmurray Email me about anything

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    Hmmm sounds like they burning but the are growing at the root?
     
  15. djmurray

    djmurray Email me about anything

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    Pics would give us a better chance of telling you wats wrong
     
  16. ed

    ed

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    i had one green acro with the same problem, healthy polyp extension but some of the tips receded. i upped the flow around this frag and ti seems happier now and no more recession. hope this helps u.
     
  17. Submariner

    Submariner Thread Starter

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  18. ed

    ed

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    flow can b very deceptive. make sure there is sufficient flow on that coral. water tends to make some "dead-spot", even in high flow tanks. in my case i turned on of my pumps to blow more directly on this frag with better results
     
  19. Mekaeel

    Mekaeel Moderator MASA Contributor

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    i actually found that when the water,basically bounces of a surface and then hit the coral its happier or when 2 pumps face each other,it creates a wider flow around the coral rather than directly at a coral
     
  20. Bob the (reef)builder

    Bob the (reef)builder

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    Can we get any pics of the actal bad spots, It could be crabs, they can shave a coral right down to the skeleton, removing all polyps.
     
  21. Mekaeel

    Mekaeel Moderator MASA Contributor

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    yeah i noticed on one of my acros the crabs on it were chowing stem,managed to get him off and stab him with a toothpick
     
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