Help with ID

Jkraljic2778

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Can somebody enlighten me what these things are and if I need to do anything with them? I have a decent amount of them in my sump. Thanks in advance.

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Pineapple sponges. Filter feeders. Sign of a healthy system :)
 

IF YOU HAD TO TAKE A REEFING EXAM, WOULD YOU PASS?

  • Yes!

    Votes: 32 45.7%
  • Not yet, but I have one that I want to buy in mind!

    Votes: 9 12.9%
  • No.

    Votes: 26 37.1%
  • Other (please explain).

    Votes: 3 4.3%

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