Lava rock in a fish only salt water tank?

Discussion in 'Fish and Invertebrates' started by Coral reefer, Apr 20, 2010.

  1. Coral reefer

    Coral reefer President

    Anyone know if lava rock is okay to use... I've seen some tanks that are settup like that and I never see any coraline on it...seems like it might effect ph or other things too, but likely would be able to host good bacteria and maybe even pods and such? Opinions and or knowledege on the subject?
  2. h20player101

    h20player101 Guest


    As and addition, what rock CAN'T you use? Within reason, no crack rocks in my tank.
  3. GreshamH

    GreshamH Guest

    There are a ton you want to stay away from for aquariums, freshwater, marine, FO, reef, etc. The make up of the rock is the biggest hurdle. Silica, phosphate, iron, mercury, etc all can be contained in rcok.

    lace rock is fine for FO but is questionable with reef tanks. Try to not get red, but rather the whiter stuff. You don't need the extra minerals the "colored" ones have.
  4. Kensington Reefer

    Kensington Reefer Supporting Member

    I would stay away from the volcanics, too many unknow variables.

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