How to Decrease the PH in Water

Decreasing the pH of water may be a necessary task in many home aquariums. Certain types of fish, particularly those from the Amazon regions of South America, prefer a pH level lower than the standard 7.0, sometimes between 6.0 to 6.5. Though there are many chemicals on the market that work to lower pH, there's a safer and easier method.

Things You'll Need

  • Peat chips
  • Mesh bag
  • Rubber band
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Instructions

  1. Decreasing Water pH

    • 1

      Fill the mesh bag with the peat chips.

    • 2

      Close the bag and tie it shut with the rubber band.

    • 3

      Rinse the bag of chips under the faucet to remove and loosen dust or dirt.

    • 4

      Place the bag in the back of your filter so that your aquarium water runs through it.