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algae on live rock

  1. Pests, Hitchhikers, and Diseases
    We've had our tank for almost a year and these red leafy things just started popping up. I've done all sorts of searching for weeks and I can't figure out what it is, I don't even know if it's good or bad!
  2. Nano Reefs
    Hi, here is a picture of something growing on my live rock. It looks like red califlower.
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