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This thin film allows bacteria to flourish because necessary nutrients are immediately available
Sodium (max) 10
Grooved pointed tip provides a secure grip
chloramine and ammonia
LED it shine day & night
D-D True Seawater Refractometer Test This thin film allows bacteriaWhat is different about the D D Seawater Refractometer? Almost all hand held salt water refractometers available to the hobby are designed and calibrated for the testing of brine solutions, i. e. sodium chloride, and are not calibrated for the refractive index of natural sea water. Even though the largest percentage of salt in the sea is sodium chloride, the presence of other significant ions such as magnesium and calcium in natural sea water results
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