Seachem Zeolite is a naturally occurring, highly porous material that binds ammonia and heavy metals through an ion exchange mechanism. It boasts to have the highest ammonia binding capacity of any available zeolite; ten times higher than some products and twice the capacity of the closest competitor.Will not affect calcium levels in saltwater, or increase general hardness in freshwater.DirectionsAlways rinse before use.Ensure Seachem Zeolite is placed so as to maximize the flow of water through it but not so that it tumbles against itself in flow. It may be used in a canister filter, media chamber, box filter, or any high flow area of a trickle filter. Use of a filter bag is recommended.Use 250 ml (1 cup) of Seachem Zeolite for every 200 L (50 US gallons). For smaller aquariums, the equivalent dose is 5 ml (1 level teaspoon) per 4 L (1 US gallon). This amount of Seachem Zeolite will remove up to 0.5 mg/l ammonia. Monitor ammonia levels, which should drop to zero within 24-48 hours. At this point, the zeolite can be removed or replaced with activated carbon, such as Seachem Matrix Carbon. For heavy metal removal, leave in service and replace monthly.
