Does any one know what the numbers on the left for salinity refers to? Is it a percentage? I have an albino moray, a butterfly goby and a leaf fish and have read that the ideal content for 2 teaspoons should be if I remember correctly is.08% with a gravity between 1.005 and 1.008. This hydrometer registers number 10 for salinity with gravity at just below the 1.008 mark.
