Pineapple sponges

Lower nutrient levels; I have also read that h202 will kill them. In my limited experience they come and go over time.

Certainly you could tooth brush them off if they become a real problem, although, as you know, they are harmless filter feeders and add diversity.
 

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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