It is not recommended to raise tortoises directly in deep water. Although tortoises are water turtles, their living habits are more terrestrial. The larger the tortoises, the more they like to stay on land, so they are more suitable for shallow water feeding. The amount of water for raising grass turtles should be close to the height of the turtle shell, and try not to completely submerge the turtle shell.
Raising tortoises also requires setting up a basking platform. You can place a few taller stones next to them. It can climb up to rest and bask in the sun at any time. Finally, no matter what kind of turtle you keep, be sure to maintain good water quality to prevent your turtle from getting sick.