Does obsidian have any affect in an aquarium?

Discussion in 'Freshwater Substrates - Gravel, Sand' started by cwb141, Dec 26, 2009.

  1. cwb141

    cwb141 Valued Member Member

    I have an obsidian sculpture that I want to use when I remodel my 29 gallon tank. Can it affect pH, gH, or kH? I'm assuming that since it's glass it won't, but it never hurts to ask.
     
  2. Aquarist

    Aquarist Fishlore Legend Member

    Hello CWB. Glass will not alter your pH.
    Ken
     
  3. Weedcali

    Weedcali New Member Member

    if you really want to be sure. i guess you could setup a container of established/stable water and record your data before and after testing the water.

    Just my 2 cents.
     




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