What is the acceptable range for use by humans and to support aquatic fishes?

The acceptable range for water quality parameters varies depending on the specific needs of the species involved, but generally, a pH range of 6.5 to 8.5 is suitable for both humans and aquatic fish. Temperature should be maintained between 15°C to 25°C (59°F to 77°F) for many freshwater species. Additionally, dissolved oxygen levels should be above 5 mg/L to support healthy aquatic life while also being safe for human consumption. Proper management of these parameters is crucial for ecological balance and human health.