cam722 wrote:All turtles need calcium in addition to what is in their food in order to have healthy bones and shell. In order to absorb the calcium they must have a UVB light. Kayte: Do you have one of these? You can give them calcium by just letting pieces of cuttlebone (without the hard backing) float in the tank.
Sunlight and special UVB bulbs provide crucial UVB rays that are necessary for the production of vitamin D3. Vitamin D3 is required for the metabolization of dietary calcium and together will prevent illnesses such as Metabolic Bone Disease. RES of all ages need to bask, ingest calcium and receive their UVB.
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