Multi Size Listing Choose Size Needed from Dropdown above. Product Information Zeolite is a highly adsorbant mineral made of mainly silica and aluminium. They can capture a variety of aquatic issues particularly ammonia. They do this in a similar way to a sponge holding water. Zeolite readily adsorbs ammonia, thus is able to deal with ammonia spikes during cycling etc*, but it is important to note that it does not work forever, becoming saturated within about a month., and will not work after its “full”. If you have really high ammonia problems, 2 weeks is likely to be the time to replace. *Only use during cycling to solve ammonia spikes and only as long as needed to bring the levels down. Then Remove. How to Use: Typically in a media bag in the filter between the Mechanical .
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