Reef Safe?

Discussion in 'Aquascape Discussion' started by ReeferNtraining, Jan 13, 2019.

  1. ReeferNtraining

    ReeferNtraining Member

    Joined:
    Aug 8, 2018
    Messages:
    28
    Likes Received:
    45
    I purchased this rock from a LFS and now I’m wondering if it’s even reef safe? I can see crystals in it, almost like a granite. Would that mean there are metals in it as well? Thoughts appreciated!
    [​IMG]
     
    Tags:

  2. EmdeReef

    EmdeReef Valuable Member R2R Supporter R2R Excellence Award Reef Squad

    Joined:
    Dec 2, 2017
    Messages:
    1,791
    Likes Received:
    2,385
    Location:
    New York, NY
    Looks fine to me, but I can't see what concerns you. Do you know what type of rock this is?
    The dark patches on the left piece could be some decaying matter.
     
  3. ReeferNtraining

    ReeferNtraining Member

    Joined:
    Aug 8, 2018
    Messages:
    28
    Likes Received:
    45
    No, I don’t know what type it is. But it’s solid and dark. Not like typical lightweight porous rock. Seeing the crystals in it is what bothers me. Makes me wonder if there are not other minerals present.
     
  4. norfolkgarden

    norfolkgarden Valuable Member R2R Supporter R2R Excellence Award Partner Member 2019

    Joined:
    Dec 25, 2012
    Messages:
    2,035
    Likes Received:
    4,084
    Location:
    Norfolk, Virginia, USA
    How heavy is it?

    Was it originally meant for a freshwater tank?

    If it is not very porous or has limited surface area compared to the stuff we normally see it won't be nearly as effective in filtering.
     
  5. MikeyA

    MikeyA Member

    Joined:
    Sep 13, 2016
    Messages:
    36
    Likes Received:
    11
    Break off a small piece and stick it on vinegar, that'll tell you if it's calcium carbonate base
     
  6. OutsideBrian

    OutsideBrian Active Member

    Joined:
    Feb 27, 2014
    Messages:
    164
    Likes Received:
    112
    How? What does it do? I too have some pieces of rock I would like to test.
     
  7. MikeyA

    MikeyA Member

    Joined:
    Sep 13, 2016
    Messages:
    36
    Likes Received:
    11
    Basically anything of limestone/calcium carbonate base with a high pH will react to any acid medium. Just break off a small piece of rock and put it in a glass of distilled vinegar 5% preferably and see if it fizzles. Do it on the sink though it can get messy.
     
    norfolkgarden likes this.

Share This Page

Loading...