Red Sea Reef-spec Seawater Refractometer Substrate Push the bubble counter stem

Push the bubble counter stem into the top of the fine adjustment valve - it will seal however is not a 'tight fit'

We repeated trial and error

000 ppm (mg/L) with added traces of Iron

’ This feature splits the rear and front of the tank via a glass panel positioned 10cm off the rear of the tank

or to create a decorative waterfall feature

Red Sea Reef-spec Seawater Refractometer Substrate Push the bubble counter stemSEAWATER REFRACTOMETER High Accuracy Seawater Refractometer Red Seas Seawater Refractometer offers exceptional accuracy, for measuring the absolute salinity of seawater at a temperature of 25oC 77 0F. Most refractometers used within the aquarium hobby are not specifically designed for reef aquariums and use an algorithm for the measurement of brine (NaCl rather than seawater) and at a temperature of 15oC 59 0F rather than 25oC 77 0F. Thus, a