Expired test kits

[donfishy]

I just looked and most of my Salifert test kits are expired. What is the best way to get rid of them? Just throw them out? Are they still a bit useful, but at least give me a range of what the actual numbers in my tank might be?

 

[cdness]

Toss them. The costs of a new test kit is nothing compared to replacement costs of livestock due to a tank crash... Better safe than sorry.

 

[Raggamuffin]

I have to agree with the above with 1 exception, after buying the new test kits compare results from new and old, if the old ones hold true use them up but keep cross checking every couple weeks or so.... unless you don't want to put in the extra work then chuck the old ones, I am cheaper than I am lazy ;)