Zeolite (20-30mm) Approx Sizes - to remove ammonia from fish hauling and holding tanks. Zeolite is a naturally-occurring mineral which has a high affinity for absorbing ammonia. When placed in salt solutions, the ammonia is released, allowing the zeolite to be "recharged" several times.

Dosage Rate: One pound of Zeolite will remove 3ppm (parts per million) ammonia from 100 gallons of water