D-D H2Ocean Refractometer With Seawater Calibration Coral RX All of these elements need

All of these elements need to be available in balanced proportionsfor coral health and growth

DIRECTIONS:

Ready to use premium live sand

One-touch feed mode to slow pumps for a period of 10 minutes

Reagent A & Reagent B

D-D H2Ocean Refractometer With Seawater Calibration Coral RX All of these elements needD D H2Ocean Refractometer is a hand held instrument for the measurement of the TRUE Salinity and Specific Gravity (S. G.) of sea water by refractive index. Easy to read. Has a copper internal body to conduct heat faster than aluminium and plastic. Auto temperature compensation (ATC) ranging from 5 to 30 degrees Celsius. Highly accurate. Easy to calibrate. A new finer scale running from 20 40ppt salinity (SG 1. 015 1. 030)