Get a good refractometer. I have three different hydrometers, all used. I re-seasoned them and tested them against the SAME tank of water. All three had different readings. My refractometer cost me 45 dollars and I've checked it against calibrated solutions and it reads perfect!
Dave
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><((((º>`·.¸¸.·´¯`·.¸.·´¯`·...¸><((((º>
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"Fins to the left...Fins to the Right, I'm going home to play with my reef tonight..."
If you're looking for me, and I'm MIA from the board, email me at JustDavidP (at) gmail (dot) com.
Experience in aquaria, 35 years. Experience in marine, 20+ years. Experience in Reef Keeping, 6 years. Always a newbie! | 
