How to know if your API test kits have expired...

[imagirlgeek]

Each bottle has a Lot # printed on the bottle. The last four digits are the month and year they were manufactured.

Last 3 years
Ammonia
High Range pH
Nitrate
GH

Last 4 years
Nitrite
KH

Last 5 years
pH

[eklikewhoa]

To add to this the phosphate and other test are almost worthless new or old.

[wesleydnunder]

My API Freshwater Master kit is 5 yrs old. I use it infrequently. Recently I had to reset my co2 in the discus tank and used the Ph test to do so. The tap Ph showed the same as it did when the kit was new. Last year after Ike I used the Ammonia and Nitrite kits. Both seemed to test fine. I know this isn't really answering the question for you Traci. Have you tried going on the AP site to see if they can give expiration data?

Mark

[imagirlgeek]

My API Freshwater Master kit is 5 yrs old. I use it infrequently. Recently I had to reset my co2 in the discus tank and used the Ph test to do so. The tap Ph showed the same as it did when the kit was new. Last year after Ike I used the Ammonia and Nitrite kits. Both seemed to test fine. I know this isn't really answering the question for you Traci. Have you tried going on the AP site to see if they can give expiration data?

Mark

The info I posted actually came from API. I was sharing the info I got with everyone here.

[wesleydnunder]

OK. I read your original post completely wrong. LOL Duh. Thanks for the help Traci.

Mark

[fshfrk]

thanks.