EdnJean

Hi all,

I have been a little concerned about variable readings I have been getting with my API test kit, and perhaps incorrect methods i was using, and also concerned that the kit may be old and expired.

As such, I contacted API directly. Please see their response below:

Edward in response to your question, each reagent bottle has a Lot # printed on the bottle. The last four digits are the month and year of manufacture. Example: Lot # 28A0108. This is a pH reagent manufactured in January of 2008. Wide Range pH, High Range pH, ammonia, nitrate, phosphate, Copper, calcium and GH all last for three years. nitrite and KH will last for four years. Freshwater pH (low range) and Pond Care Salt Level will last for five years. I would not use or trust these kits after they have expired. Also make sure to read your test levels after the 5 minute mark as stated in the directions. Some tests like the pH must be read right away. Leaving the tests set overnight will give you a higher false reading then what is currently in your aquarium.


Hope this helps everyone.

Ed

Dozey

Thanks for posting that Ed. Many here have thought that the date was the expiry date. Getting the facts straight from API certainly clears that up.

Thanks again.

Shawnie

great info ed!! and be aware also, alot of kits lately within the last few months, have had an expiration of 06-07 and they are being sold now....I found one in our local store last week with 04 on the lot # great job and thanks for sharing with us!

I dont buy if its already expired no matter how long the shelf life is..im too skeered

Lucy

Thanks Ed, that's very helpful.