Volcanic Rock Ok?

Discussion in 'Freshwater Aquarium Builds' started by Cricket lynn mclean, Aug 4, 2017.

  1. Cricket lynn mcleanWell Known MemberMember

    I've read volcanic rock should not affect the tank. Also read about the vinegar test. I picked these rocks up on a nature hike in the hills in Phoenix. They are not affected by vinegar but just wanted to double check if anyone has personal experience with adding them. Do you know if they will affect the hardness of water or ph? Or offset the mineral balance for plants?
    Thank you. 15018633720071999452376.jpg1501863413717391706086.jpg
  2. DoubleDutchFishlore LegendMember

    It wouldn't. Lava isn't calcium based like sendimetal rock. Only thing I believe could be an issue with it containing metals.

    Lava is sold as aquariumrock for years here. There even still is.some in my tanks.
  3. Cricket lynn mcleanWell Known MemberMember

    Thank you
  4. WTFish?Well Known MemberMember

    I've been researching his today too, I'm also in Az. So far I haven't read anything negative.
  5. Cricket lynn mcleanWell Known MemberMember

    Awesome :)

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