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Old 08-20-2009, 10:03 PM   #11
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Any time you have two different readings, its safer to err towards the worst and correct a problem that might or might not be there. Better safe than sorry!
Yea - that's the approach I took ... worst case scenario.
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Old 08-21-2009, 09:02 AM   #12
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Just a quick update ...

I went ahead and took a water sample to my LFS to test for Nitrates. They're test kit (same as mine) showed no trace of nitrates, however I have two NO3 API test kits and both were showing some nitrates - one was showing approximately 10ppm and the other closer to 15ppm.

In discussion we concluded that these are hobby grade test kits so some fluctuation is to be expected and my LFS operator suggested my kits my be newer than his which are why they are showing Nitrates. Who knows ...

And in regards to Nitrate levels in a FOWLER system ... his words were 'anything over zero should frustrate you and always work to minimize NO3 but fish and inverts like I have are safe until Nitrates hit 40ppm'.

I went ahead and did a 13% PWC this evening just to be on the safe side.
Did you notice if your LFS shook the poop out of Bottle 2 for 30 seconds then shake the test tube vigorously for one minute after putting in 10 drops of bottle 2? The instructions say if that isn't done your readings wont be accurate.
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Old 08-21-2009, 09:49 AM   #13
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Originally Posted by jessicasmarine View Post
Any time you have two different readings, its safer to err towards the worst and correct a problem that might or might not be there. Better safe than sorry!
I'm with Zach. It's recommended for Nitrites in a FOWLR to be <30 ppm.
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Old 08-21-2009, 10:35 AM   #14
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Did you notice if your LFS shook the poop out of Bottle 2 for 30 seconds then shake the test tube vigorously for one minute after putting in 10 drops of bottle 2? The instructions say if that isn't done your readings wont be accurate.
Yea - he did the test exactly as instructed ... he even waited the 5-minute period for the results.
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Old 08-21-2009, 10:38 AM   #15
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I'm with Zach. It's recommended for Nitrites in a FOWLR to be <30 ppm.
I agree ... I think my personal threshold is gonna be to strive for 0ppm but do a PWC if they ever hit 15-20ppm. I have switched to an every other day feeding schedule as I know I am guilty of overfeeding.

My LFS operator says he has customers that come in that test at 100ppm on Nitrates. That's crazy high!
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Old 08-21-2009, 10:56 AM   #16
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I hate when things get wacky like that. I went through the same thing with the testing of my water for salinity at 5 different LFS's (Using Hydrometers) and getting 5 different results actually 6 because my hydrometer also had a different reading then the rest. I now own a refractometer.
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Old 08-21-2009, 11:13 AM   #17
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Amen on the refractometer ... I bought one as well.
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Old 08-21-2009, 11:17 AM   #18
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Yeah Brother.
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