Red Sea Seawater Refractometer control and monitor Red Sea Trace-Colors Pro Multi

Red Sea Trace-Colors Pro Multi Test Kit

Unclogs gravel/coral beds

Aquarium heater with thermo-saftey control (auto shut off)

1 L (500 g) per 1000 L (260 US gal lqd) aquarium water if applied in a flow-through filter unit

The plastic coated temperature sensor is waterproof and suitable for use in a marine aquarium

Red Sea Seawater Refractometer control and monitor Red Sea Trace-Colors Pro MultiRed Sea seawater refractometer Integrated automatic temperature compensation Red Sea 'Reef Spec' guarantee Red Sea's seawater refractometer is specifically designed to measure absolute salinty of seawater for reef aquariums. Calibrated for seawater. Measuring the salinity of seawater with a standard refractometer calibrated for brine (NaCl) solution will result in a deviation of up to 1. 5ppt.