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
 

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: 42 31.6%
  • I occasionally look for signs of invertebrate stress in my reef tank.

    Votes: 30 22.6%
  • I rarely look for signs of invertebrate stress in my reef tank.

    Votes: 27 20.3%
  • I never look for signs of invertebrate stress in my reef tank.

    Votes: 34 25.6%
  • Other.

    Votes: 0 0.0%
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