Trachyphyllia Receding but no RTN or STN

Discussion in 'Corals' started by sen5241b, Nov 24, 2011.

  1. sen5241b

    sen5241b

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    I got a small brain with a beautiful and unusual orange color. I noticed the flesh is receding around the edges but there is no dead tissue like you see when the coral is infected or when it has Rapid Tissue Necrosis (RTN) or STN. I noticed an emerald crab crawling on it at one point. Where the flesh is receded looks like it was picked clean. My other corals are looking fine although my lobo looks a little bit retracted.
     
    sen5241b, Nov 24, 2011
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  2. sen5241b

    little_fish Moderator

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    Do you have any shrimps in your tank? Whenever my sexy shrimp decide to go after a coral they look like that.
     
    little_fish, Nov 24, 2011
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  3. sen5241b

    sen5241b

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    No shrimps. Got emeralds, gobies and snails including one inch and a half wide Turbo.
     
    sen5241b, Nov 24, 2011
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  4. sen5241b

    sen5241b

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    Salnity 1.023
    Nitrates zero
    calcium 490
    Alk 7
    Ph 8.3
    temp 79

    I had to leave town for 2 days and it has gotten worse and my lobo continues to look bad

    HELP!

    I know this pic sucks but you can see the white receding area.

    [​IMG]
     
    Last edited: Nov 25, 2011
    sen5241b, Nov 25, 2011
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  5. sen5241b

    little_fish Moderator

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    Did you by chance have an alk swing? I would also up your salinity to 1.026
     
    little_fish, Nov 25, 2011
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  6. sen5241b

    sen5241b

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    Good call -I dosed alk recently and there may well have been an alk swing.

    My hammer, mushrooms (2 kinds), zoas (2 kinds), Echinophyllia (2 kinds), plate (funchia) all look just fine.
     
    sen5241b, Nov 25, 2011
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  7. sen5241b

    sen5241b

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    Also, if there was an alk swing it could not have gone higher than 8 maybe 9.
     
    sen5241b, Nov 25, 2011
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  8. sen5241b

    little_fish Moderator

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    Well, ive always heard that brains (and I would toss lobos into that category) are very sensitive to alk swings, so the swing might have been small enough to piss off the brain and lobo, but not any of your other LPS corals
     
    little_fish, Nov 25, 2011
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  9. sen5241b

    sen5241b

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    My trumpets, sinularia and Ricordea are also fine. This is a weird one. seems like I can rule out of the obvious reasons.
     
    sen5241b, Nov 25, 2011
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  10. sen5241b

    little_fish Moderator

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    I would put my money on an alk spike personally

    Perhaps next time you dose, do a test right before, 15 minutes afterwards, 45 minutes after, and then that evening. You might see something funny.
     
    little_fish, Nov 25, 2011
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  11. sen5241b

    sen5241b

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    Good idea. I forgot to mention my Favia looks fine also.
     
    sen5241b, Nov 25, 2011
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  12. sen5241b

    sen5241b

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    My bulb is 11 months old. Maybe some LPS need stronger light?
     
    sen5241b, Nov 27, 2011
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  13. sen5241b

    little_fish Moderator

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    It could be, but I doubt it. However, it wouldnt hurt to change it
     
    little_fish, Nov 28, 2011
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