The average lifespan of the Tetras is believed to be ten years. The Paracheirodon innesi prefer blackwater habitats because they are sensitive to direct light rays. In an aquarium, you should keep 6-12 Tetras together. They are most active in a group of 12 or more.

Do tetras die easily?

Neon tetras can live up to ten years, but they can die easily with the slightest change in the fish tank environment. If there are any drastic changes in the water chemistry, the fish begin experiencing stress, depression and develop low immunity.

How long do tetras last?

The estimated lifespan for tetras under good circumstances is 5 to 10 years. For smaller tetras, however, they live only up to 5 years at most.