Zeolite is a naturally occurring volcanic rock used for its ability to bind with ammonias which help feed algae blooms. Use often as there is no detriment to fish or pond plants. If you have green or murky water in your fish pond simply add granulated or powdered Zeolite to effectively starve the algae buy removing its access to ammonia from fish waste. Use of zeolite is recommended every 3 months or as needed.
25kg Bags available in 3 granule sizes.
1.2mm – 2mm
2.2mm – 4mm
4.4mm – 6mm