Zoo Med Dr. Turtle Slow Release Calcium Block 0.5 oz

Dr. Turtle is a slow-release medicated sulfa block that helps prevent common bacterial and fungal diseases associated with water turtles, other aquatic reptiles and aquatic amphibians. One Dr Turtle treats up to 15 gallons of water.Calcium Sulfate, Magnesium Chloride."

Ingredients:

",Calcium Sulfate, Magnesium Chloride.