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Nickel (Ni)
Based on Reef-Roids' proven formula
They are a complete pet food for fish
Box contains 10 easy to use test strips for ammonia
Operating water level: 9
Fritz 35ppt Calibration Solution 1.25oz / 37ml TMC Nickel (Ni)Pre measured refractometer calibration solution takes the guesswork out of properly calibrating your instrument with no need for expensive or unreliable measuring equipment. A refractometer is essential to the saltwater hobbyist for success. Maintain its accuracy by recalibrating regularly. Shake bottle well before application. Ensure the refractometer prism surface is clean, wipe with distilled or RO water if necessary and dry with a cloth. Add 2 3
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