Urgent help needed sps bleaching

Discussion in 'Urgent Help Needed' started by butcherman, 7 Mar 2011.

  1. butcherman

    butcherman Moderator MASA Contributor

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    Hi guys

    Got home from work this afternoon, and my pink poccilipora seems very white and the plolyps are hardly extended.

    ph 8.2
    sg = 1.025
    temp 26.5 degrees
    ca = 460ppm
    mg = 1300ppm
    Kh = 5.5 dkh (slowly raising this)
    nh3 = 0ppm
    no2 = 0ppm
    no3 = 5 ppm

    The only thing i have changed is i dosed special blend on saturday.
    Also run aqua medic po4 remover.

    There are also 2 pin chusions, gsp, and a few zoa's and mushrooms.

    [​IMG]

    I have had this frag for 6 months.

    I have added active charcoal incase.

    Any comments or ideas?
     
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  3. viper357

    viper357 Admin MASA Contributor

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    Depending on the rate of tissue loss/bleaching it could be RTN or STN, how long has your alk been so low and how low was it when you started increasing it?

    I don't think there is much you can do apart from see what it looks like in the morning, any sudden changes in parameters may just make it worse. Have you had any large sudden temperature fluctuations? Changed your lights recently?
     
    Last edited: 7 Mar 2011
  4. butcherman

    butcherman Thread Starter Moderator MASA Contributor

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    The lights been up befor i got the frag and temp never varies more than 1.5 degrees a day 25.5- 27.
     
    Last edited: 7 Mar 2011
  5. viper357

    viper357 Admin MASA Contributor

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    I would be inclined to say the low alk may be a contributing factor, although low alkalinity normally causes tissue loss from the base upwards.
    Are these corals ok or also suffering?
     
  6. butcherman

    butcherman Thread Starter Moderator MASA Contributor

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    all doing well
     
  7. butcherman

    butcherman Thread Starter Moderator MASA Contributor

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    dont thing something ate it?
     
  8. Adee

    Adee

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    could be just the effects of low alk...before the recent alk test, how long before that did u test for alk?

    If u can still see polyp extension, more likely bleaching. If tissue necrosis, you wont see any polyps at all.

    pincushions though should be showing signs of stress if a general problem. is there a softie/coral close by that could have stung it?
     
  9. viper357

    viper357 Admin MASA Contributor

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    How much phosphate remover did you add? I have read some reports that adding too much phosphate remover can cause SPS corals to bleach. Can you tell if there is actual tissue loss (peeling off) or just a loss of pigmentation? Also do you know what your night time ph readings are?
     
  10. butcherman

    butcherman Thread Starter Moderator MASA Contributor

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    8.2 daytime is 8.3

    looks more like loss of pigmentation nothing peeling off.

    they look like they are still there just not out, like a few microcentimeters in length

    2 weeks, I been raising it slowly as its was down at 4

    i did move it closer to the zoas, but it was still about 10 cm away. Do you think it could be some kind of chemical war?
     
  11. mandarinman

    mandarinman

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    dose iodide.
     
  12. butcherman

    butcherman Thread Starter Moderator MASA Contributor

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    ok, but what would iodine do? You think it's an iodine efficency?
     
  13. Tony

    Tony

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    I think it's a sudden drop in nutrients. What were your phosphate and nitrate readings before you added the special blend, GFO and GAC. All of these serve to reduce nutrients and total organic carbon. Nutrient reduction should be done slowly to avoid shocking the system
     
  14. mandarinman

    mandarinman

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    helps prevent release of photosynthetic bac. and helps sps cope with changes in light. i read this off brightwells iodide bottle.
     
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  15. butcherman

    butcherman Thread Starter Moderator MASA Contributor

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    gfo been in for more that 3 months i change it once a month, in the small 2 little fishies reactor i run a little(about 5cm deep)

    GAC was added last night as a precaution

    special blend added 1st time sunday according to directions,

    NO3 was 15 ppm befor now 5ppm

    po4 almost undetectable with safrit test kit

    would iodine shortage cause (trigger) this, as some of the red macro algae has started comming back i think it sucks alot of iodine out the water.
     
  16. butcherman

    butcherman Thread Starter Moderator MASA Contributor

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    Ok so last night i moved the coral further away from the zoas.

    dont know if moving it has any direct effect, but this afternoon there seems a little improvement. Alot of polyps around the base are extened and on a few of the tips.

    [​IMG]

    thoughs , ideas?
     
  17. Adee

    Adee

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    whats your alk now?
    with your alk being as low as 4dKH, i'm surprised that other LS did not show signs.
    Just note on the iodine deficiency, its first noticeable on the coloration, especially first on plating monti's...they simply go very pale/dull in color and tips of other corals appear to have bleached looking tips.
     
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  18. butcherman

    butcherman Thread Starter Moderator MASA Contributor

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    it was 5.5 last night test again later. how much can i raise it with out to much stress to the tank?
     
  19. butcherman

    butcherman Thread Starter Moderator MASA Contributor

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    unfortunatly i dont have an iodine test kit. Will see if i can get one tomorrow.
     
  20. Submariner

    Submariner

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    Iodine is hard to test for.

    There are visuall markers to look for.
     
  21. butcherman

    butcherman Thread Starter Moderator MASA Contributor

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    what should i be looking out for?
    or should i simply does as a percaution?
     
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