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• Formulated utilizing extensive data compiled by microbiologists
Regular use -NP Pro allows you to reduce the amount of nitrate to an undetectable level
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If phosphate is present in too high a concentration there may be an increase in growth of undesirable algae and if the phosphate level is higher than 0
Shake product well before using
Brightwell Refractometer & Hydrometer Calibration Standard others • Formulated utilizing extensive dataBrightwell Aquatics Aquarium Reagents Refractometer & Hydrometer Calibration Standard is designed to provide an accurate reference for the calibration of seawater refractometers, hydrometers and other density measuring equipment. Instructions & Guidelines Refractometers 1. Shake product well before using. 2. Clean Refractometer prism slide with fresh distilled water. 3. Dry completely with soft clean dry cloth. 4. Place several drops of Brightwell