SPS Advise Please - RTN?

Discussion in 'SPS Corals' started by vatso, 9 Aug 2010.

  1. vatso

    vatso

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    Hi all please have a look at this piece of SPS I only noticed it yesterday does not seem any bigger today - the SPS piece is going white at the bottom.

    Here are some pics what do I do? all other SPS do not have this

    Sorry the bad pic but I had to Zoom right in

    [​IMG]

    [​IMG]

    here is a pic of the SPS piece

    [​IMG]
     
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  3. scubaninja

    scubaninja

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    need better pictures. They are terrible, i cant actually see whats going on
     
  4. vatso

    vatso Thread Starter

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    I can't get a better pic they have to be zoomed in & are at the base - the only way would be to remove the piece which I will only do if I need to frag it

    have a look where it's white not sure if I should leave it or frag it? it's a small amount but still rather catching things early
     
  5. Manic

    Manic Moderator

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    Well I can tell you it isn't RTN otherwise the coral would already be completely white. It is STN, I had it on all my sps a while ago. This was due to low nutrients and my alkalinity dropping below 7. What I did to stop the STN is raise my alk, feed more and dose brightwells restor. The problem with STN is that once it starts it usually doesn't stop, no matter what you do (Short of fragging the tips of the coral off).
     
  6. vatso

    vatso Thread Starter

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    Hmmm - thats not good my alk is 9 & has been all the time - maybe it's low nutrients been using brightwell coralamino.

    how did your stop? & it does not seem to be getting worse? will keep watching it & it's only on that piece of SPS in the tank
     
  7. Manic

    Manic Moderator

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    The coral amino is a good thing, try double the dose or switch to seachem reef plus, it has amino acids as well as vitamins for the corals, this seemed to stop mine. Another cause of STN on the base is a lack of flow.
     
  8. vatso

    vatso Thread Starter

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    Thanks Manic

    I got really good flow - it seems like it just started or it has been there some time - only noticed it now will keep watching it seems to only be in 2 places.

    Also use Lugol's

    Will watch it & if it get's any worse will have to frag it which I so do not want to do :(
     
  9. vatso

    vatso Thread Starter

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    Manic can I frag around the base? with a stanley knife? it's only just started at the base?
     
  10. Adee

    Adee

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    Looks like base bleaching Mark. Keep an eye on it and monitor if it gets worse by the weekend. Mines stopped when I went off the microbacter stuff...

    I would only frag should it look like its going to the stem....from what I can see its more on the edges of the encrusted base.
     
  11. vatso

    vatso Thread Starter

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    thanks adee will keep u posted thank goodness u so close
     
  12. scubaninja

    scubaninja

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    Yes i dont think that is RTN either by the sounds of the description. It could be a flow thing as already said. Or a nutrient thing. Check your flow around the base and if it advances to the stem as said you cut off the part that is going white by cutting off a bit of the good parts too, to ensure that it all comes off. Check your Ca. Sometimes you get white patches on SPS where your Ca is too low. Could be that too
     
  13. Nemos Janitor

    Nemos Janitor

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    Mark do you use lugos on a regular bases. To much iodide could also be the cause. Check your iodine levels and iodide if you can.
     
  14. vatso

    vatso Thread Starter

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    thanks NJ will stop dosing lugos in fact will stop dosing everything
     
  15. scubaninja

    scubaninja

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    maybe this isnt a good idea, do the tests and see what it is. Stopping everything could do more harm.
     
  16. Nemos Janitor

    Nemos Janitor

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    I agree. Test first.
     
  17. vatso

    vatso Thread Starter

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    okay will test tomorrow

    hope its nothing & that the coral survives will keep my eye on it
     
  18. vatso

    vatso Thread Starter

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    okay will test tomorrow

    hope its nothing & that the coral survives will keep my eye on it
     
  19. SCOOBY

    SCOOBY SCOOBY

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    nEe MaN mARk.WaT MaAk Jy??????
     
  20. Mekaeel

    Mekaeel Moderator MASA Contributor

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    From what I can see. The recession is at the base of the coral. Two things could be the problem here, the corl is shading the base and therefore not enough light is reaching it, or there is a lack of flow at the base.
     
  21. vatso

    vatso Thread Starter

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    there is no direct light on both parts that have turned white - what to do? is it just part of reef keeping?

    Mark
     
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