What is happening to this coral?

Hammer100

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IMG_0580.JPG
 

LobsterOfJustice

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Looks like STN “slow tissue necrosis” a slow die off usually from the base up. Parameters could be off, toxin/contaminant, pests present...
 

stephj03

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Where on the coral did this begin? How long did it take for this much to occur?
 

High pressure shells: Do you look for signs of stress in the invertebrates in your reef tank?

  • I regularly look for signs of invertebrate stress in my reef tank.

    Votes: 39 32.5%
  • I occasionally look for signs of invertebrate stress in my reef tank.

    Votes: 28 23.3%
  • I rarely look for signs of invertebrate stress in my reef tank.

    Votes: 23 19.2%
  • I never look for signs of invertebrate stress in my reef tank.

    Votes: 30 25.0%
  • Other.

    Votes: 0 0.0%
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