ZooMed Dr. Turtle Slow-Release Calcium Block

ZooMed

ZooMed Dr. Turtle Slow-Release Calcium Block is a block of easy to absorb calcium to promote shell and bone health in aquatic turtles. This block slowly dissolves in your turtles water supply.
Calcium Sulfate, Magnesium Chloride.
Calcium (min) 20%
Calcium (max) 24%

Replace as needed.