Things You'll Need
- Tap water purifier
Instructions
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1
Purchase a tap water purifier from an aquatic or pet store. Ask a store representative to be sure the purifier you buy is meant for aquarium use.
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2
Set the purifier to the pH you want for your water.
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3
Attach the purifier to your aquarium filter and activate it. The pH of the water should lower to the designated pH completely in one to two days, once all the buffering ions have been filtered out of the tank.
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