What is the best pH range for a healthy aquarium?

The optimal pH range for most freshwater aquarium fish is between 6.5 and 7.5. Some species may have specific pH requirements that fall outside of this range, so it's important to research the ideal pH for your particular fish species.

It's also worth noting that pH is not the only important water parameter for aquarium fish. Other factors such as temperature, water hardness, and ammonia levels also play a crucial role in maintaining a healthy aquarium environment. Regularly monitoring and adjusting these parameters is essential for the well-being of your aquatic pets.