Brand New 8 gallon bio cube

My cyano doesn't look as red now. Looks very dark. Is it dying? How do you know? Today is water change day and I had planned on scrubbing it out. Just curious.
Need some pictures, please
 

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WHAT’S USUALLY THE FIRST CLUE THAT SOMETHING IS OFF IN YOUR REEF?

  • A fish’s behavior or appetite changes

    Votes: 4 9.3%
  • A coral looks different or stops opening normally

    Votes: 27 62.8%
  • Water clarity or surface appearance changes

    Votes: 6 14.0%
  • Equipment sounds or flow seem different

    Votes: 5 11.6%
  • A test result catches my attention

    Votes: 11 25.6%
  • Algae or other growth starts changing

    Votes: 11 25.6%
  • I usually notice when the problem is already obvious

    Votes: 3 7.0%
  • It depends on what’s going on

    Votes: 8 18.6%
  • Other (Post in the comments)

    Votes: 1 2.3%

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