Salinity Problem

[Spare time]

I use a plastic hydrometer still lol.. is it that accurate? Idk but it works for me! I just keep it at 1.026 no matter what the accuracy is.

Honestly the Instant Ocean ones are pretty spot on.

 

[Troylee]

Honestly the Instant Ocean ones are pretty spot on.

That’s what I got.. just make sure to clean it well after use..

 

[Randy Holmes-Farley]

How would one know if one is better quality than another?

That can be hard to know without someone testing them. The whole reason Consumer Reports exists.

Unbranded refractometers are likely a substantial risk, IMO. But branding doesn't necessarily mean good. The Hanna conductivity meters, for example, seem prone to issues.