Use 3ml of NP-Pearls per 1 gal of aquarium water (1/4 cup NP-Active Pearls per 20 gal water). Note: it may take 2-4 weeks for the process to start. Replenish Pearls every 6-9 months as needed. Important: NP-Active Pearls should be placed in a fluidized reactor or similar device where the Pearls are kept in constant motion with sufficient water flow.
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