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Seaweed Selects are 100% digestible
The denitrification catalyst supplied with the blocks increases the bacteria production within the massive surface area and ideal living conditions on the inside of the blocks
dino-x is intended for use in marine aquariums only
- No formation of by-products (e
D-D H2Ocean Refractometer With Seawater Calibration Live Sand Seaweed Selects are 100% digestibleD 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)