Temperature of Water Turtles

Hobbyists should attempt to duplicate the air and water temperatures experienced by water turtles in their natural environment. When temperatures drop, turtles become sluggish and stop eating. Food already within the digestive tract may ferment or putrefy, allowing bacteria to multiply and perhaps cause disease.

Many species tolerate room temperatures for both air and water. When in doubt, provide the range of temperatures used for tropical fish (70-80 degrees F). Water turtles that originate from tropical climates require a heat source. Aquarium heaters work best for indoor aquariums. Large tanks and outdoor ponds require a specially designed water heater that maintains a constant temperature.

An incandescent light bulb or heat lamp can be installed directly above the basking area to provide supplemental heat. Most experts believe turtles remain healthier if they are permitted to seek out heat when they desire it. Great care should be taken to ensure the temperature at the level of basking surface does not exceed 90 degrees F. Such heat sources may also increase the water temperature in very small aquariums to undesirable levels. A thermometer should be placed in the water and another on or near the basking surface so the temperature of these areas can be continually monitored.

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