The longest life span of red-eared turtles can be about 35 years, but in general, only red-eared turtles living in the wild can reach 35 years. The life span of captive red-eared turtles is about 15-25 years, and very few of them can reach more than 25 years. How long the red-eared turtles can live in captivity depends on their living environment and the way they are raised. If properly raised, their life expectancy will generally be about 20 years. If they are not properly raised, their life span will be reduced.

If breeders want them to live longer, they need to ensure that their living environment is comfortable. At ordinary times, it is necessary to ensure that the water temperature is between 20-30 ℃, and the water quality of their life is clean. In addition, in their infancy, their resistance and immunity are relatively weak, and breeders need to check their bodies regularly to avoid illness affecting their life span.

The maximum length of red-eared turtle can reach 30 cm and its weight can reach 2 kg. However, not all red-eared turtles can grow to this size. Under normal circumstances, only female turtles may reach 30 cm in length and 2 kg in weight. Red-eared turtles raised in the same environment are relatively small in size, with a body length of 15-20 cm and a weight of about 0.5 kg. If breeders want them to grow bigger, they should feed them more nutritious food.