Zoo Med Dr. Turtle Slow Release Calcium Block

Dr. Turtle by Zoo Med is a slow release calcium block that helps condition water and provide calcium supplement to promote healthy shell growth for aquatic turtles.
Easy tp use, slow-release calcium block
1 block treats up to 15 gallons
Provides required calcium & conditions water
Turtles require UVB lighting and heat for proper shell growth and development. For optimum health, feed your turtles Zoo Meds Natural Aquatic Turtle food.
Ingredients: Calcium Sulfate, Magnesium Chloride.
Guaranteed Analysis:
Calcium (min) - 20%; (max) - 24%