A unique form of Laumontite Crystal, Calcium Aluminum Silicate that:• Keeps water clear and clean for up to 3 months.

• Reduces toxic levels of ammonia.

• Increases oxygen content in the water.

• Balances pH, purifies water

Contains essential minerals that are utilized by fish to keep them healthy and enhance/brighten their colors.

Use 5-lbs per 700 gallons of water

Clp61: 25-lb