Guess what this is

Mr_Knightley

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Some sort of new crystalline filtration media, potentially resin or polymer based for extracting either copper or nitrate?
 

BeltedCoyote

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Ok the answer is the inside of a DROP scrubber showing bare Green Grabber rocks without growth, and the lights of course are on.

im not familiar with your scrubbers besides your surf line. I myself will be using a CW waterfall scrubber due to space constraints. But any working scrubber is a treasure
 

Algae invading algae: Have you had unwanted algae in your good macroalgae?

  • I regularly have unwanted algae in my macroalgae.

    Votes: 45 35.7%
  • I occasionally have unwanted algae in my macroalgae.

    Votes: 27 21.4%
  • I rarely have unwanted algae in my macroalgae.

    Votes: 9 7.1%
  • I never have unwanted algae in my macroalgae.

    Votes: 10 7.9%
  • I don’t have macroalgae.

    Votes: 31 24.6%
  • Other.

    Votes: 4 3.2%
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