Ever wonder when do these test kits expire? Well I finally got a reply from the company and this is what they said;
"Thank you very much for contacting us regarding our products. All of your
comments and questions are valuable. We use your feedback to create the most
effective line of aquarium and pond products available.
Sorry for the delay we are backed up due to the start of a busy pond season.
Antonio 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 # 28A0107. This is a pH reagent manufactured in January of 2007. Pond Care
Wide Range pH, Ammonia, High Range pH, 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."
If you have any other questions or wish to discuss this further, please email
back or give us a call at 1-800-847-0659.
Best Regards,
Nathan Fekula
Technical Service and Research
Mars Fishcare
50 EAST HAMILTON ST
PO BOX 218
CHALFONT, PA 18914-0218
E+nfekula@AQUARIUMPHARM.COM _________
9YR OLD 90G 30G w/d Mag18 150G skimmer 692w MH,yel&kole tang,foxface,midas&convict blenny,B&G chromies,Blk/yel fin chromie blackcap,nemo,neon goby,6line; Blastomussa Merleti,Acan ,BUBBLE,Torch,LTA, Goniopora(2), Acropora(2),Brain, Moon, assort zoas, yel& G star polyps, R&G open brain, P&B ricordia, montiporas, cup&candy corals, enias,B/G mush,flower ane(2), cherry red mussa, dusters,cleaning crew
For Those Who Use Api Test Kits *fyi* 
. Luna
Luna
