accurate salt readings

[fhair]

what is better or more accurate glass hydrometer or refractometer

 

[puffer32]

I believe a refractor is more accurate, but costs more.

 

[loodachris]

Yes to both of Puffer's responses. But you need to think, knowing that you are getting an accurate reading gives you MUCH more assurance that you are doing this right. Also by spending the money up front you are preventing a tank crash and having to start over or quit. Get a refractometer

 

[elfdoctors]

A refractometer is more expensive up front but is more accurate. It also is easier to use after you learn how to do this. Also, after breaking several glass hydrometers, the refractometer really isn't too expensive.
The plastic swing-arm hydrometers are notoriously inaccurate after they have been used for a while.