Rtn?

Discussion in 'ASAP' started by Flazky, Jun 5, 2010.

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  1. Flazky

    Flazky Bristle Worm

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    I have just purchased the first 3 sps in my tank and I am worried that one of them has RTN. My gf wanted it really badly so I picked it up thinking that the whiteness of part of the sps is just bleaching but when I started reading more and more about RTN, it got me quite worried.
    Here are the pics of the sps I have at home.
    [​IMG]
    This is the one I am worried about having RTN[​IMG][​IMG]

    Here are the pics that the store took of the sps I got. These pictures were taken by NAFB. The reason im showing these pictures is because I cannot seem to produce the same colour but the corals that are in my tank right have the colours of the pics from the store. The sps im worried about I could not get a pic of from the store. Just imagine it with blue tips and...greenish yellow body. The parts that are white..are bright white

    [​IMG]
    [​IMG]
     
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  3. ReefSparky

    ReefSparky Super Moderator

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    Admittedly I was completely ignorant of RTN and STN, what they look like and the success rates in their cure. I found and read this link and think/hope I learned a lot. Maybe those with experience can chime in and help out.

    What I walked away with after reading, is that for RTN, you're pretty much done for. It can wipe out a coral in 24 hrs. With STN, this article states a 90% success rate with fragging and glueing.

    Does anyone have any decent pics of RTN and STN?
     
  4. missionsix

    missionsix Super Moderator Staff Member

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    The whiteness on the tips is likely new growth. RTN looks like a balloon stretched over something with a tear in it. It looks like you could grab with tweezers and peel it off. There is an obvious separation in flesh(of the various sps corals I've kept).
     
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  5. ReefSparky

    ReefSparky Super Moderator

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    So the 2nd pic down looks to me like a coral that's half bleached. Could this have been from STN or RTN?
     
  6. Flazky

    Flazky Bristle Worm

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    haha thats what I was wondering.
     
  7. kcbrad

    kcbrad Giant Squid

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    I have limited knowledge of RTN, but it looks like the RTN my SPS had, and the coral was completely white within a day. It looked like the color part was flaking/sloughing off in small pieces. If it is RTN, you can try to frag the coral to save it, but if it's too far gone it's best to just remove the coral from your tank, since RTN is contagious. You'll know it's RTN, because the amount of white increases rapidly.
     
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  9. steve wright

    steve wright Super Moderator

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    RTN - Thankfully only 2 experiences of this and both within the same 48 hour period
    Rapid was no misnomer in my case, I left for work at 8am and corals where nicely coloured, arrived home at 6.15pm and there was maybe 1/2 of colour left on the tips of each branch, with browny coloured string (flesh) hanging off what was left
    no time to read up and react and by the day after all I had where a couple of nice white coral skeletons
    the last thing I wanted to do was get the camera , so no pictures of this terrible episode for me

    STN
    [​IMG]

    a much slower process and as stated above you do get time to react and/ or to make a desicion
    I have had 3 corals with STN and the image above is the worst of them
    it started from the base and travels up the coral in all 3 cases I have

    my purple Milli had a small area on the base when it arrived ( failed to spot this in LFS)
    left alone in good water quality and adequate flow, the coral grew over the white area and cannot be seen anymore

    my green acro , 1 full branch was lost, as I broke this off and discarded it, the coral has grown over the expossed calcium that the break left

    I lack experience with SPS corals, but have chosen to leave the above coral alone, and not frag or cover affected area with superglue ( check the WWW, this is a technique described to prevent spread of STN)


    (NB I have had 1 case of white tips but that was Alk burn due to not considering properly the pace and location of my carbonate buffer introduction)

    Thats about all I can add to this thread as I am still learning (some times the hard way eh!)

    Steve
     
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  10. Flazky

    Flazky Bristle Worm

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    heya guys
    thanks for the quick responses. Well the coral hasnt really changed in terms of white spreading, looks pretty much the same.
     
  11. bje

    bje Long-fin Bannerfish

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    hopefully new growth then :) im not familiar with RTN/STN either yet. i have yet to get a coral with some kind of problem and have yet to have a coral fail on me. (started my tank in dec 09, just added my first few corals last week so im a total noob)
     
  12. Flazky

    Flazky Bristle Worm

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    Lol I have only been in saltwater since Jan 2010 so I'm prlly nooner than you haha.

    But yeah man I can't beleive how awesome my green acRo looks.. It is just stunning. Now I see how people can get so infactuated with sps hahaha