Expired test kit

[fraz04]

hello hello,

I'm about in my 3rd week of cycling my tank, been about 8-9 years since my last tank. Been testing the water with a test kit that i had 8-9 years ago. i didn't even think about the test kit being expired. i did a little research and see that they do have a self life of about 4-5 years. i will be getting a new kit but the old one does seem to be giving me readings that would be correct to cycling a tank. Just wondering if anyone has has any problems with an expired test kit or if its kinda like expired milk (you usally get a few extra days after it has expired).

thanks