D-D H2Ocean Portable Refractometer Salinity Checker– Seawater Reptile Heating 20 – 65 W

20 – 65 W

particularly when trimming larger leaves and stems near the surface of the water where a shallow angle remains effective

dried fish protein digest

• To produce 170 litres of seawater use 149

Complete Balling-Light Start Set with free access to Aquacalculator (Windows)

D-D H2Ocean Portable Refractometer Salinity Checker– Seawater Reptile Heating 20 – 65 WD D H2Ocean Portable Refractometer Salinity Checker Seawater Some of the refractometers currently available to the aquarium hobby are designed for measuring saltwater (sodium chloride or brine solution) and not true seawater. Although seawater is mostly sodium chloride it also contains other elements such as magnesium and calcium that change the refractive index slightly and will give a slightly different result. The most common symptom of this