Things You'll Need
- pH Meter
- Aquarium
- Crushed Seashells
Instructions
Dip the probe end of the pH meter into the aquarium water. The meter will begin collecting data, which takes a moment. The meter will display a reading on the LCD display once it has collected enough data. If this reading is below pH 7.4, you need to raise the pH by adding crushed seashells.
Pour a small amount of crushed seashells into the water. If the pH is below 7.4, the seashells will dissolve. Pour more seashells in until they stop dissolving. At this point, the seashells have raised the pH to 7.4 and will act as a buffering agent. This will keep the pH level stable over time.
Take another pH reading using the pH meter. Verify that the pH is 7.4. If it isn't, try adding some more crushed seashells but this time give them more time to dissolve.