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Sorry this product has been discontinued. External Filter Media and Foams
Penn-Plax Pro - Z Zeolite Crystals
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Laboratory quality ammonia removing crystals remove ammonia from your aquarium. Contains zeolite, which has been proven to remove ammonia from tank water. Excellent for use with all freshwater fish.
For best results, replace every 4 to 6 weeks. Add to internal, hang-on tank, and external filters. (Be sure to use a filter bag to protect mechanical filter parts.) For freshwater use only.
*Additional delivery charges may apply to the following destinations: Isle of Wight, Isles of Scilly, Northern Ireland, Republic of Ireland and Scottish Highlands. Please contact us for a customised delivery quote.
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