What tempureture should freshwater fish be kept at?

Freshwater fish can tolerate a wide range of temperatures, but the optimal temperature range varies depending on the species of fish. In general, most freshwater fish prefer temperatures between 65°F and 75°F (18°C and 24°C). Some tropical fish species may prefer warmer temperatures, up to 86°F (30°C), while some coldwater species may prefer cooler temperatures, down to 50°F (10°C).

It is important to research the specific temperature requirements for the species of fish you are keeping to ensure their health and well-being.