live rock

Discussion in 'General Discussions and Advice' started by moe101, 12 Sep 2013.

  1. moe101

    moe101

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    hi.i bought some live rock and not sure if all the pieces are actually live rock.
    expecially this red rock:

    [​IMG]

    and 2 pieces of rock have dead sps on it.should I leave it on the rock .or crush it up in the dsb or display tanks

    [​IMG]

    [​IMG]
     
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  3. jimilutz

    jimilutz

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    I don't know about the red, it looks like sandstone. I have not seen red sandstone in the ocean, the red/orange cliffs I have seen are due to lichen growing on the rock. I always thought red rock was due to iron content in the rock but a geologist will have a better opinion.
    I would leave the skeletons on the other as it looks like a good place to grow some zoas or Xenia and will make a nice feature.
     
  4. NO3

    NO3

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    Looks like a old peice of corrobrick thats been rolling in the sea for a year or two
     
  5. pkc

    pkc

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    The best way to trust a rock or grit or anything like that for use in salt water is to try a magnet close to it, if there is any attraction at all, throw it away!
    Even corals may grow over metals.
     
  6. moe101

    moe101 Thread Starter

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    thanks for the input guys.
    just as I thought ,a brick laying in water for a long time.because I notice that the rock surface actually breaks down if I scrape on it
     
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