Nutrafin Turtle Conditioner Health Block helps keep water from going acidic while the calcium that is released as the block dissolves aids in preventing soft shell.

Ingredients: Calcium sulphate (24%), magnesium sulphate, sodium chloride, thiamine hydrochloride.

Guaranteed Analysis:

Calcium 240,000 mg/kg
Magnesium 739.5 mg/kg
Sodium / Natrium 590.25 mg/kg
Thiamine / Thiamin / Thiamine
2 100 mg/kg