Seawater Refractometer - Red Sea Filtration * Does not include pH

* Does not include pH probe

along with millions of micro and macro passage ways CaribSea's Shapes Dry Live Rock is perfect for the environmentally friendly aquarist

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Drip Acclimation: While not mandatory

making it harder for colors to blend

Seawater Refractometer - Red Sea Filtration * Does not include pHMain features of Red Seas Seawater Refractometer include: Directly reads the absolutesalinity ofseawaterat25C 77 0F ( No need for seawater or temperature compensation factors) Specifically designed for the ionic content of seawater (NSW) for more accurate salinity measurement (industry standard refractometers are calibrated for salt brine ). Calibrated for seawater (NSW) at 25oC 77oF, the normal temperature range for reef aquariums (most standard