most acurate gravity meter

[ivan]

i'll be doing hyposalinity on my fish. i need to now what gravity meter is the most acutate.

 

[seabass]

I think the coral life (new improves) is the best one. it captures the water from 6" bellow the surface and no bubbles. you dont have to fart around by trying to keep the water line on the line, it does it itself when you take it up

 

[sonny]

The most accurate method is to use a refractometer. They cost about $100, but will give you the most accurate measurement in both specific gravity and actual salinity in ppm.
Sonny

 

[jimi]

I second the refractometer.It is what you should use for hypo treatments as any slight variation may be critical for successful treatment.