api ammonia test q - Page 2 - Tropical Fish Keeping - Aquarium fish care and resources

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post #11 of 24 Old 05-16-2007, 09:43 AM Thread Starter
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ahhhhhhh i dont think i waited five minutes
ill try leaving the sample for a while

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post #12 of 24 Old 05-16-2007, 10:21 AM
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This sounds dumb, so alas, that means I've done it before. ;)

Whenever I get a weird test result, I test again.

Reagent no. 1 is actually light yellow. Reagent no. 2 is clear. If... you picked up the wrong bottle while running the test, you might have nothing but clear.

Also, the yellow reagent is thick and heavy and sinks to the bottom, whereas the clear reagent is light. If it wasn't shaken, that might explain why the light yellow didn't mix.

Still searching for answers.
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post #13 of 24 Old 05-16-2007, 11:29 AM Thread Starter
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i left the sample for 10 mins and put it to the light it has gone a very very pale yellow

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post #14 of 24 Old 05-16-2007, 11:36 AM
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Oh - interesting.

My tests are all clear when there are no readings. They're a different make mind you but I assumed that they'd all be the same.
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post #15 of 24 Old 05-16-2007, 12:12 PM
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I would say a clear reading was showing that something was wrong when testing for ammonia using API tests. As for other companies I have seen many different colors for everything from ammonia to nitrates. One of the tests I saw online actually showed purple color results for nitrates.

The cards you have or whatever reference colors you have for any test kit should be followed and you should see the color that says 0 or I would suspect something is wrong.
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post #16 of 24 Old 05-16-2007, 12:16 PM
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Quote:
One of the tests I saw online actually showed purple color results for nitrates.
You seem so surprised!

That is what mine does. :)
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post #17 of 24 Old 05-16-2007, 02:08 PM
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API ammonia kits that are sold down here have a range from 0 to 7 ppm

Which explains why are test cards have clear at 0 ppm
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post #18 of 24 Old 05-16-2007, 11:55 PM
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check this out. I knew a lady that works at the school I do had a ap master test kit that looked a little different than mine so I checked it out tonight. her kit is from 1993 and includes the following... ph 6-7.6 material bromethynal blue... nitrite test soloution... chlorine test soloution(orthotolidine reagent)... hardness test, 3 bottles, 1 sodium hydroxide, 2 calmagite soloution, 3 edta color indicator... ammonia test soloution,1 bottle modified nessler reagent... and guess what, the 0 ppm is clear and .5 is light yellow and so on into the greens. I wonder when ap changed all this? doesnt even test for nitrates. so I guess everyone is somewhat right in this
mike c.

125 gal. s.a.& c.a.
55 gal. s.a.&c.a.
29 gal. mixed tropical
20 gal. grow out-hospital
2 10 gal. multis soon
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post #19 of 24 Old 05-17-2007, 12:01 AM
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Quote:
her kit is from 1993
Well aged wouldn't you say
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post #20 of 24 Old 05-17-2007, 01:50 AM
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very well aged , somehow Im doubting its like wine though, I knew her kit was different but not that old
mike c.

125 gal. s.a.& c.a.
55 gal. s.a.&c.a.
29 gal. mixed tropical
20 gal. grow out-hospital
2 10 gal. multis soon
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