Neon tetras have an optimum water temperature range of 22 to 26 degrees Celsius. Within this temperature range, neon tetras can maintain their best health and living habits.

Neon tetras are native to the upper reaches of the Amazon River. They adapt to weakly acidic water with a pH value between 6.4 and 6.8. They are gentle in temperament and like to live in groups. The appropriate water temperature helps them maintain a lively personality and a good living environment.