Testing nitrate for brackish water

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FishFanMan

AC Members
Jun 13, 2013
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Naperville, IL
Would my FW tester work for brackish water? My SG is 1.0135. Or do I need to buy a SW kit?

Thanks.
 

Glabe

River Rat
May 10, 2011
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From my understanding from googling in the past, the reagents of the nitrogen tests are the same. The color charts are different for fw and sw, so interpreting the results of brackish would be hard.

Maybe you could take some freshwater of a known nitrate level, make the sg 1.0135, and then test again to find what color you're looking for
 

Glabe

River Rat
May 10, 2011
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^^^ For API at least*
 

FishFanMan

AC Members
Jun 13, 2013
691
0
16
Naperville, IL
I took some FW from my tank and brought it to SG of 1.0135. The ph, nitrite and nitrate showed the same color as FW. The ammonia test for brackish was turbid but the color is the same. So it looks like I can use the FW kit.

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