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5 Pack Of Zoo Med Dr.Turtle Slow-Release Calcium Block Helps provide your turtle with the required calcium he needs. Encourages proper shell growth and development when accompanied with UVB lighting and heat. The block slowly releases calcium as it dissolves. Easy-to-use—simply place the turtle-shaped block into your pet’s water.
AmazonTurtles require UVB lighting and heat for proper shell growth and development Dr Turtle is a slow-release calcium block To use, simply place the Dr. Turtle Block in your turtles water supply Pack of 2