Refractometer
- Thread starter Cheesehead
- Start date
To calibrate them, they have a screw at the top. Put freshwater on it and adjust the screw until the line reads ZERO.
As for brand, did you have a specific one in mind you were wondering about?
Aquatic Eco carries several good quality units.
As for brand, did you have a specific one in mind you were wondering about?
Aquatic Eco carries several good quality units.
Most of the aquariums I've worked with used this one:
http://www.aquaticeco.com/subcategories/553/Salinity-Refractometer
http://www.aquaticeco.com/subcategories/553/Salinity-Refractometer
