Top quality Zeolite Crystals eliminates the #1 fish killer- ammonia.
- Rinse Zeolite Crystals thoroughly before use. Use 1/4 cup (4 Tablespoons) of Zeolite Crystals for every 10 gallons of aquarium water.
- Use in any filter by placing Zeolite Crystals in filter cartridge or bag in the flow of the water. Do not use loose or place directly in the aquarium.
- Replace Zeolite Crystals every 4-6 weeks under normal use. Replace sooner if odors are detected or if water appears dirty or colored.