Doughnut turtles are shallow-water turtles, which are native to the United States and Mexico. They all live in shallow waters. When living in the wild, they all live in streams, lakes or springs with moderate velocity. And they often climb to the shore to bask in the sun, so they belong to shallow water turtles. When raising at home, the water level can be slightly deeper, and then a balcony can be built for them, so that they can swim in the water and rest on the gentle slope.

It is written above that doughnut turtle is not a deep-water turtle, so the water level should not be too deep. In the process of breeding, the height of water level needs to be adjusted according to their body shape. If they are newborn doughnuts, the water level should be lower, because they are newborn and have insufficient physical strength to live in deep water. Therefore, the height is just below the carapace, so that they can take a breath when they look up or stand on tiptoe, which will neither affect the development of their carapace nor affect their breathing. As they grow in size, the water level can also increase, and the water level of doughnut turtles in adulthood can be controlled at 1-2 times the height of their carapace.

In addition, doughnut turtles can't live in water all the time. Breeders must build a balcony for them, and they have a rest area.