Quote:
Originally Posted by corrado007  I understand from all of the posts out there that a refractometer is better but I was wondering if anyone had any experience with and feedback on those glass hydrometers. I've never tried one and was just wondering how accurate they are and why I haven't heard of anyone using them.
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If you are willing to go out and buy a laboratory grade glass hydrometer from a lab supply company, then the answer to your question is yes, they can be very accurate.
However, as noted by others, you'll pay almost as much as a refractometer.
If you are talking about the glass floating hydrometers sold by most LFSs today, the answer is no. Those cheep mass produced ones for the aquarium trade are almost always way off.
Also with a refractometer, you can do a test with only 3 or 4 drops of water, you need enough water to float the glass hydrometer for it to work.
06-15-2007, 08:08 PM
