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Old 06-20-2004, 02:58 PM   #11
steve-s
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Originally Posted by Atari
Is there any particular reason an aquarium needs a higher SG? Isn't NSW closer to 1.021 than 1.025?
SG is temperature dependant so it really depends on where but no animal we will generally keep will come from those kinds of waters. Reef invertebrates and most fish will come from a 34-37 ppt salinity. In the case of fish, permanently housed at low levels will lead to kidney damage.

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Old 06-20-2004, 03:04 PM   #12
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Originally Posted by malkore
my instant ocean says 1/2cup per gallon should get me to 1.024 if using R/O.
Actually that's more correct, I was way off. I marked off a tupperware bowl ages ago and forgot the measure. It was 3 cups salt for 5 gal of water, I just remeasured the marking.

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Old 06-20-2004, 08:40 PM   #13
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Older books and some fish stores advocate .019 to .020 as it makes less stressful for the fish. This idea has pretty much been shot down on all fronts as not benefitting the fish and generally doing more harm than good. Shoot for around .023 to .026.
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Old 06-20-2004, 09:05 PM   #14
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i just when to the lfs and found a cup. and you take one of thes cups to 4 gal of water will give you 1.023 sg. it is really nice so all i have to do is guess at how many gal of watre i have in the tub i use to mix and then add that much salt and check back in a few hours and add a little more.
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Old 06-20-2004, 10:44 PM   #15
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After about 24 hours, I have a 1.025 with a temp of 80 degrees. Now I just have to get some raw shrimp.
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