Chlorides of Sodium and Potassium, Polyvinylpyrrolidone.
Directions for Use:
Add 1 tablet to each 10 gallons of aquarium water.
Note: For aquariums 40 gallon or larger, and for soft water and/or acid water with low alkalinity, dissolve tablets before adding to aquarium.
* Ingredients listed are for informational purposes only and are subject to change by the manufacturer. Always refer to the manufacturer and actual product label/inserts for current ingredients, recommended dosage, precautions and warnings before use.