refractomer or hydrometer

[midgetwaiter]

Originally Posted by Chaloupa

Refractometer....I was using only a hydrometer but when I found out HOW out of whack it was...I stopped!

You should make sure your refractometer isn't the one out of wack Calibrating it with RO/DI can cause issues, use something like Pinpoit salinity fluid.

My glued back together 4 times Aquarium Systems hydrometer finally died so I use the refract now. I calibrate it every week though.