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It also provides nitrogen
P25 - up to 6 gallons
An extremely flavorful
and discourages nuisance algae
Sera Marin Floating Glass Hydrometer Fluval 406 - Parts It also provides nitrogenFor the uncomplicated monitoring of marine water density The salinity (salt contents) can be deduced from the measured density. Since the salinity of marine water in an aquarium must be kept constant, the aquarium water should regularly be checked accordingly. The water to be tested is filled into a sufficiently tall water glass, and the scale of the immersed hydrometer is read off on according to its immersion depth.
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