The average lifespan of neon tetras is two to three years. Neon tetras have relatively high requirements for their living environment. The suitable water temperature for them is between 22 and 24 degrees Celsius. The water quality should be soft and slightly acidic. The aquarium water needs to be kept clean and aged, with less frequent water changes. Also, the environment should be quiet and direct strong light should be avoided.
Neon tetras are gentle and timid by nature. They are typical mid-level fish and have relatively high requirements for their living environment. They prefer a soft and slightly acidic water environment and have a relatively strong adaptability. However, they are small in size and might become the "targets" of other larger fish in the tank. As long as they are provided with enough space and food, they can live happily.