Don't know a thing about this API test kit but with the Elos test kits, I've noticed they sometimes do these "corrections" to the instructions, like if one drop is intended to be equal to 100 of something, they might put a sticker over the card (not the detailed instructions) that say it's 75. Probably just coincidence here but 75 is 3/4 of 100 and 9 is 3/4 of 12 ..
I myself am through with Elos test kits. I never really understood the mass appeal of them to begin with, but between having been thrown off by confusing results and those glass test tubes that break just by putting the supplied stopper thing on them (I've broken at least 6 of those tubes just putting that plug on, or taking it off) I now feel totally burned by them.
The test kits I hated the least were Seachem. They come with reference solutions so you can "test your test kit" and can thus have some degree of confidence in your results. But nobody seems to carry them anymore. Oh, if only someone who worked at a LFS could take sympathy on the plight of the test kit abusee's and could look into ordering something better....
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-- Tony
My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills. Whee!
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