How To Raise Ph In Aquarium Naturally. 1 teaspoon of baking soda per 5 gallons is generally considered a safe amount for small incremental increases. Adding 1 teaspoon per 5 gallons of water will raise the ph in your aquarium.
Adding the following items will increase acidity to a point where only part is bound by buffering (kh), leaving the rest free to lower ph. Always prepare water and test ph before adding it to your aquarium.
3 Natural Methods To Lower The PH In Your Aquarium Fish
An aquarium’s ph can gradually lower as pollutants build up. Another way to raise aquarium ph is by growing plants, which will dispose of the excess co2 present in the water and help lower the ph.