What instrument do you use to measure salinity?

[mark]

Hydrometer - it might be off but it's my understanding any error is consistent so at least no S.G. swings with water changes.

[Funky_Fish14]

Originally Posted by TheReefGeek

Refracto & Hydrometer

I use the refracto once and a while to make sure my hydro is accurate, because i'm lazy and the hydro is easier to use.

refracto - $65

Haha no way? Dipping the whole assemply in water, smashing it around for it to even tell me I have salt in the water, then waiting a few minutes? Haha much easier to use the refrac IMO.

I paid $65 from my refrac. I didnt bother checking my hydrometer's accuracy cause I could never get a consistant reading out of it anyways, so I wouldnt know which is actually the 'correct' measurement with it.

[OCDP]

I find them both easy to use. My refrac. is accurate, and I tested against my hydro. And to my surprise the hydrometer is very accurate. Go figure.