What are these dark spots on my rocks?

Fair enough, so i guess if it is what you say then my plans to drop this rock into the sump of the new tank isnt a good idea
Honestly be fine in your sump.. no light it won’t grow.. even if it did a couple turbo snails would take care of it..
 

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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