Weird black algae

Hansen60

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Somebody please help.
My rock almost all black.
Idk what it is like black algae maybe?
How to get rid?

IMG_20220908_114134.jpg
 

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: 32 31.1%
  • I occasionally look for signs of invertebrate stress in my reef tank.

    Votes: 25 24.3%
  • I rarely look for signs of invertebrate stress in my reef tank.

    Votes: 19 18.4%
  • I never look for signs of invertebrate stress in my reef tank.

    Votes: 27 26.2%
  • Other.

    Votes: 0 0.0%
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