Although the Brazilian tortoise is a kind of water turtle, which lives in water for a long time, they also need to bask in the sun. Because proper sunlight can supplement vitamins for Brazilian tortoise, promote its absorption of calcium, kill bacteria on the shell and prevent the shell from becoming brittle and soft. Therefore, sufficient light can effectively improve the resistance of Brazilian tortoise. But when the light is strong in summer, don't let the Brazilian tortoise bask in the sun for a long time, otherwise it will be easy to dehydrate.