 hydrometer temp. calibration
Hi all:
I'm helping out a colleague with a temporary cold marine set-up (ie 4 gallons of chilled water to keep some periwinkles and hermit crabs from Long Island Sound alive long enough to show to some kindergarteners). My question is about the Instant Ocean Marineland swing-arm hydrometer I have. I know that it is calibrated for warmer water, so how do I adjust my reading for colder temps?
Many thanks!
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20 High (started 5/18/06)
20 lbs live rock and 3" sand bed - Remora w/ MJ1200 & Prefilter - 10 gallon sump/fuge - MAG7 & SCWD return - 65W 10,000K PC - 15W Actinic - Red-legged Hermits - Cerith Snails - Nassarius Snails - Royal Gramma - 6line Wrasse - Maroon Clown - Wheeler's Goby - Bubble-Tip Anemone - Green Star Polyp - Button Polyps - Frilly Brown Mushroom - Green Bullseye Mushroom - Kenya Tree Coral | 
