It is not possible to raise snapping turtles directly with tap water, otherwise the snapping turtles may get white eyes, and tap water needs to be exposed to the sun before use . There is no need to change the water too often, otherwise the snapping turtle may suffer from indigestion because it cannot meet the water temperature. For good cleaning work, changing the water once every 1 to 2 days is enough. It is better to change the water half an hour after feeding to prevent food residues and permeates from contaminating the water quality.