Nice.... thanks Richard!
> -----Original Message-----
> From: Richard Lewis [SMTP:[EMAIL PROTECTED]]
> Sent: Thursday, July 26, 2001 11:46 AM
> To: [EMAIL PROTECTED]
> Subject: Re: Someone help!
>
> Hi Shane
>
> Sorry to hear about the corals! I hope the tables below help with your
> SG/temp question. Don't know if it's what you're looking for or not.
> Charts are from Natural Reef Aquariums by John H. Tullock. Once you
> figure salinity, you should shoot for a range of 34 - 36 for inverts.
> Using your temp of 79, and reading of 1.024, gives a conversion factor of
> 0.0027, which added to your SG reading gives a density of 1.0267. Taken
> from the bottom chart, the density reading gives a salinity of 36, at the
> high end of where you want to be. Natural sea water in the vicinity of
> most coral reefs is 35 according to Tullock, so you should be OK. Hope
> this helps.
>
> Rich
>
>
> ESTIMATING SALINITY FROM
> SPECIFIC GRAVITY
>
> When the specific gravity of aquarium water is measured with a hydrometer,
> the salinity of the water can be calculated if the temperature is also
> known. First, convert the temperature reading to Celsius, by using the
> following formula: degrees C = 0.56 (F-32)
>
> Next, read across to find the temperature in the first table below,
> Conversion of Observed Hydrometer Readings to Density. Read down that
> column to the row corresponding to the hydrometer reading. The number in
> the table is a conversion factor, which should be added to the hydrometer
> reading. The result is the density reading of the water. For example, if
> the temperature in your tank is 22 degrees Celsius and your hydrometer
> reading is 1.0230, the conversion factor (0.0016) should be added to your
> hydrometer reading, resulting in a density reading of 1.0246. Then refer
> to the table, Conversion of Density to Salinity. There you find that your
> density calculation of 1.0246 gives a salinity reading of approximately
> 33.
>
> CONVERSION OF OBSERVED HYDROMETER READINGS
> TO DENSITY
>
>
>
>
> TEMPERATURE (C)
>
> HYDROMETER READING 20' 21'
> 22' 23' 24' 25' 26'
>
> 1.0170 .0010
> .0012 .0015 .0017 .0020 .0022 .0025
>
> 1.0180 .0010
> .0012 .0015 .0017 .0020 .0023 .0025
>
> 1.0190 .0010
> .0012 .0015 .0018 .0020 .0023 .0026
>
> 1.0200 .0010
> .0013 .0015 .0018 .0020 .0023 .0026
>
> 1.0210 .0010
> .0013 .0015 .0018 .0021 .0023 .0026
>
> 1.0220 .0011
> .0013 .0015 .0018 .0021 .0023 .0026
>
> 1.0230 .0011
> .0013 .0016 .0018 .0021 .0024 .0026
>
> 1.0240 .0011
> .0013 .0016 .0018 .0021 .0024 .0027
>
> 1.0250 .0011
> .0013 .0016 .0018 .0021 .0024 .0027
>
> 1.0260 .0011
> .0013 .0016 .0019 .0022 .0024 .0027
>
> 1.0270 .0011
> .0014 .0016 .0019 .0022 .0024 .0027
>
> 1.0280 .0011
> .0014 .0016 .0019 .0022 .0025 .0028
>
> 1.0290 .0011
> .0014 .0016 .0019 .0022
>
>
>
> CONVERSION OF DENSITY TO
> SALINITY
>
>
>
> DENSITY SALINITY
> DENSITY SALINITY
>
> (in parts
> per (in parts per
>
> thousand)
> thousand)
>
> 1.0180 25
> 1.0240 32
>
> 1.0185 25
> 1.0245 33
>
> 1.0190 26
> 1.0250 34
>
> 1.0195 27
> 1.0255 34
>
> 1.0200 27
> 1.0260 35
>
> 1.0205 28
> 1.0265 36
>
> 1.0210 29
> 1.0270 36
>
> 1.0215 29
> 1.0275 37
>
> 1.0220 30
> 1.0280 38
>
> 1.0225 30
> 1.0285 38
>
> 1.0230 31
> 1.0290 39
>
> 1.0235 32
> 1.0295 39
>
>
> 1.0230 40
>
>
>
>
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