Red Sea Seawater Refractometer Batfish Tannins can provide a natural

Tannins can provide a natural tint to the water

they are small

Arag-Alive sands clear quickly and contain millions of live bacteria

sera marine GVG-Mix Nature is the natural staple food for surface-oriented marine fish without dyes and preservatives

Red Sea Seawater Refractometer Batfish Tannins can provide a naturalRed Seas Seawater Refractometer offers exceptional accuracy, for measuring the absolute salinity of seawater at a temperature of 25C 77F. 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) at a temperature of 15C 59F rather than 25C 77F. Thus, a measurement deviation of up to 1. 5ppt is possible, which can have a significant