Refractometer

[JHG]

Originally Posted by Bartman

I just bought one off eBay, haven't received it yet. Why aren't you using yours?

I used to use mine with my freshwater tanks but need to buy some calibration solution to calibrate it for use on the marine tanks.

If you're still looking for a refractometer try Aquaria Canada. Mine arrived a few days ago for I believe $45 or so.

J