RTN in process

Discussion in 'Urgent Help Needed' started by Nemos Janitor, 30 Aug 2009.

  1. Nemos Janitor

    Nemos Janitor

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    Got RTN in process wiping out acros, monties and some closed brains. Doing all i know. Any suggestions appreciated.

    All water prams ok.
     
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  3. jacquesb

    jacquesb Retired Moderator

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    Hi Nemo's Janitor. Unfortunately, All I can suggest is, iodine dips, and fragging the corals... else you WILL loose all the colonies.... Good luck mate. Will be holding thumbs!
     
  4. scubaninja

    scubaninja

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    hows your flow and light? these too can be a cause of it if your parameters are all ok
     
  5. Nemos Janitor

    Nemos Janitor Thread Starter

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    Thanks JB. we are embarking on continuous water changes. iodine dosing and very wet skimming. and reducing temp to 22c. We will try and quarantine any frags left.
    But what, with all my experience this is the first time for me. $hit it go down fast.
     
  6. jacquesb

    jacquesb Retired Moderator

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    Jip - this does happen very quickly unfortunately, mate.

    Perhaps just check the calcium levels, pH levels, and alkalinity levels in the tank water too... I know that these (any major changes in these) does, and can do, impact RTN very quickly.....
     
  7. Nemos Janitor

    Nemos Janitor Thread Starter

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    Scubs flow is good a few tunze and lightning is 2 x 250w 14k giesemans and 2 x 400w ventures designer blues with a bank of T5's.
     
  8. Nemos Janitor

    Nemos Janitor Thread Starter

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    lighting pic.

    [​IMG]

    and what we are loosing.
    [​IMG]
     
  9. scubaninja

    scubaninja

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    i dont see how it would have come out of the blue though, if your flow hasnt changed or your light, and you say all your parameters are ok, why now? you sure the parameters are ok? the temp, pH, alkalinity and calcium as JB says or are you assuming? having suffered RTN before in my experience something usually went out of sync
     
  10. scubaninja

    scubaninja

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    that is a hell of a large amount of light though, you sure you havent burnt them?
     
  11. Nemos Janitor

    Nemos Janitor Thread Starter

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    Possable cause is a 15% water change on tuesday?

    Thanks for suport guys will keep u updated.
     
  12. Nemos Janitor

    Nemos Janitor Thread Starter

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    Scubs lighting has been in place for nearly a year and the giesemans are on their second round. Growth has been very good. RNT started yesterday evening.
     
  13. scubaninja

    scubaninja

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    15% 5 days ago? i dont think that is the cause and if your lights have been there forever... I dunno. You sure you checked your parameters? your salinity hasnt gone out of wack by any chance?
     
  14. Nemos Janitor

    Nemos Janitor Thread Starter

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    Ok the system has an aquatronica and the density is recorded every 3 hours. will get ADVdiver to download measured water parameters for reference.

    I just have that aching/sick feeling it is the water change.
     
  15. Shaun

    Shaun Retired Moderator

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    Something must be the cause, water conditions or "faulty" light or glass filter or bulb cracked. Turn down flow as this will make it spread. Remove affected coral's frag and maybe dip. But you need to find the cause.
     
  16. Shaun

    Shaun Retired Moderator

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    Check calibration of probes.
     
  17. Nemos Janitor

    Nemos Janitor Thread Starter

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    Thanks Shaun. did not think of the bulb thing leaking UV.:thumbup: The cause will hopefully be found soon.
     
  18. Shaun

    Shaun Retired Moderator

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    Mek had a bulb problem a couple of moths back.
     
  19. Mekaeel

    Mekaeel Moderator MASA Contributor

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    Yip as Shaun said. Check the bulb. I fried half my tank about a year ago due to MH that cracked in half. Is the RTN from the base or top of your Acros? Was there any chemicals used in the house that could have leached into the system NJ?
     
  20. Nemos Janitor

    Nemos Janitor Thread Starter

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    Ok all water prams are stable except for KH. Ca fluctuates between 390 and 410 which i dont regard as a problem. however the KH dropped from 9 to 5dkh. a concern.

    There are acros showing polyp extension however they are receding from the tips.

    We have decided to remove badly affected corals. increase the calcium and KH by addition of bio calcium. stop fish feeding. reducing temp in an attempt to slow metabolism. Flow is being maintained in an attempt to dilute contaminates in the now small water changes. skimming very wet and holding thumbs. Oh luigi's was also added.
    To morrow we will access the situation. All globes are ok.
    Guy thanks for input and i think we have covered all bases. If you think of something we have missed shout.:bigear:
     
  21. brentnorm

    brentnorm

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    Good luck. Hope everything works according to plan.
     
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