Putting turtles in tap water is generally what I recommend. Because it often contains chlorine and other chemicals that can harm turtles. Chlorine can irritate a turtle’s skin and eyes, and long-term exposure can cause health problems.
Other chemicals in tap water, such as heavy metals, can also harm turtles. It’s better to use a water dechlorinator to remove chlorine and other chemicals from the water before you put your turtle in it. Another option is to use filtered water or collect rainwater; it will be an excellent alternative to tap water.