5 Ways How to Raise pH in Aquarium

1. Aerate the Tank

The first option is to aerate your tank. Many aquarists would claim that this is also the best way to lower the pH levels in the water, but I'll leave this decision to you.

Using driftwood is a common method for keeping your pH levels lower. This is because driftwood releases acidic compounds known as tannins or tannic acids when in contact with water.

2. Boil the Decorative Driftwood

3. Baking Soda

All you need to do is to add a teaspoon of baking soda per 5 gallons of water. This amount will slightly increase your pH levels and it won't harm your fish, shrimp, snails, or plants.

4. Aquarium Buffers

Aquarium buffers are a common chemical solution that works similarly to baking soda - but more effectively.

5. Crushed Corals

Take some crushed corals, put them in a bag, and add them to your filter. This will gradually increase the pH values without shocking your fish or making your tank too dirty.