The suitable water level height is different for different tortoises, and the breeder needs to decide the water level according to their body size. The newborn tortoise is small in size and poor in physical strength and swimming ability, so it needs to live in shallow water. At this time, breeders need to keep the water level below the carapace, so that they can breathe when they look up or stand on tiptoe. When they grow in size, their swimming ability will be enhanced, and the breeder can control the height of water level to 2-3 cm above the carapace. When the tortoise is an adult, it can be raised in deep water, but it can't be too deep. The height of water level can be controlled at 2-3 times the height of carapace.

The origin of the tortoise is Australia and other regions, which belongs to tropical temperature, so the ambient temperature in which they usually live is relatively high. The water temperature of captive turtles needs to be kept between 28-30 ℃, and heating rods need to be used to keep the water temperature constant in autumn and winter. Round Australian turtles like warmth and fear of cold. If the water temperature is too low, they will have problems such as decreased activity, loss of appetite and decreased immunity. Over time, it will affect their growth and development speed and their health.