Thanks for the info. AP it is.

"Poe Lim" wrote in message
...
I have both; they seem to give the same reading, but the AP one is much
simpler. BTW, it is two reagents, not one.
--
Cheers,
Poe

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"Tasslehoff" wrote in message
u...
Hiya everyone again. I currently have an Aquasonic(Australian brand)
NO3
Test kit(almost finished) which is a four part process. Liquid, tablet,
shake extremely vigoruosly for two minutes, wait 5 minutes, liquid,
another
liquid wait three minutes. The Aquarium Pharmaceuticals one seems to be
a
single liquid addition. Any advice on which one is more accurate?