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post #1 of 5 Old 12-28-2010, 08:38 PM Thread Starter
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API Freshwater Master Test Kit

hii all,

I bought an API Freshwater Master Test kit as instructed here since it was the best. What I'm wondering is how do you find out the expiration date of the test chemicals? I have searched all over and do not see anything.

In spite of doing twice weekly 50% water changes (and vacuuming the substrate at the same time) my nitrates continue to test at 40. And yes I am shaking reagent bottle #2 for 2 minutes.

Frustating...

Gina
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post #2 of 5 Old 12-28-2010, 09:32 PM
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I don't have a definitive answer for you. I do know that they're good for at least a couple of years as long as you're storing them in normal temps etc. How long have you had yours?

30g SE Asian Tank
15 Lambchop Rasbora
2 Gold White Cloud Minnows
3 Dwarf Chain Loaches
2 Powder Blue Dwarf Gourami

55g Amazon Tank
2 Wild Type Angels
1 Marble Angel
1 Black Angel
1 Koi Angel
2 Bolivian Rams
14 Pristella Tetra
10 Dwarf Pencilfish
2-3 Twig Catfish (to come)
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post #3 of 5 Old 12-28-2010, 09:42 PM
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Try testing your tap water. You may have high nitrates from the tap, especially if it has been raining heavily where you live. The first heavy rains around here always cause nitrate spikes in the tap water.

If that's not the problem, I've heard that the last four digits of the lot numbers on the bottles are the month and year they were produced. I'm not positive on this, but it seems accurate as all of mine indicate that they were made around the end of last year.

-Elizabeth
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post #4 of 5 Old 12-28-2010, 09:46 PM
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There are numbers printed on the front or back of each bottle. You want to look at the last four numbers

Example: 1008 means 10th month 08 is the year. It should be good for 2 years
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post #5 of 5 Old 12-28-2010, 10:31 PM Thread Starter
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thank you all.. I just checked.. my bottles are still well within date.

Gina
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