Crocodile turtles be raised with pure water, because they have low requirements for water and can tolerate poor water quality. As long as the raised water is clean, they can survive normally. In addition, pure water is relatively clean compared with other water and is not polluted. However, pure water easily contains a large amount of hydrogen monoxide and other harmful substances. Although it has no effect on human body, it has an impact on the normal life of crocodile turtles, so breeders need to be exposed to the sun for 2-3 days before they can completely volatilize. Moreover, after sterilization, disinfection and filtration, pure water lacks trace elements needed by crocodile turtle life, so it is not recommended to use it for a long time. In addition, crocodile turtles like to live in deep water, and the cost of raising them with pure water is relatively high.

Crocodile turtles can also be raised with tap water, well water, river water, etc. As mentioned above, their requirements for water quality are not strict, as long as the water quality is clean. Tap water is similar to pure water, which is manually filtered and sterilized, so the received water does not need to be filtered, but it needs to be dried for a period of time before the harmful substances in the water can be completely volatilized.

River water and well water contain many trace elements needed for crocodile turtle growth, but these two kinds of water are easily polluted, and breeders need to filter them before using them.