Ananda
Posts: 7,034
From: Chicagoland
Registered: Nov, 2001
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Re: Ich. Yuck. High temp/salt tx question.
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Posted:
Aug 13, 2003 4:55 PM
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I just dug out my little scale and weighed some Instant Ocean. The smallest increment on my scale is 5 gm. It looked like one teaspoon of IO weighed almost 7.5 gm. I kept going until I got to 75 gm, which took 10.75 tsp of IO. That's about a teaspon shy of 1/4 cup for a 10g tank. This IO was from the big bucket, which was nicely sealed and protected from humidity.
I also weighed IO that was in a bag which I'd not closed properly. Due to the humidity, the salt has absorbed some moisture. With that, one teaspoon of IO weighed 5 gm.
Looks like the best way to figure out how much salt you really need is to use something that measures salinity -- most hydrometers measure specific gravity. The SeaTest ones also have lines for salinity, but I've no idea how accurate those are.
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