Dinos or Diatoms?

sotsreef

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Here is a picture, if needed I can post tank details but was gonna see if anyone could tell from just a photo. I’m talking about the brownish spots on the white dry rock.
711274FA-7904-4071-BFC5-9212DB355935.jpeg
 

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: 31 31.0%
  • I occasionally look for signs of invertebrate stress in my reef tank.

    Votes: 25 25.0%
  • I rarely look for signs of invertebrate stress in my reef tank.

    Votes: 19 19.0%
  • I never look for signs of invertebrate stress in my reef tank.

    Votes: 25 25.0%
  • Other.

    Votes: 0 0.0%
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