[leebca]

Christina,

A lot can go wrong with measuring and using a medication.

Salifert test kits have an expiration date on them. No telling how long the store or source you got the kit from may have had it in their inventory. If there is no sticker on the box, then it was removed or the kit was made prior to them putting expiration dates on their kits. If no date sticker is there or no date indicated on the box, I would assume the kit has expired.

Was the medication measured or dropped? Before you reply to this, please read through this thread: Cupramine Treatment Mystery

Good luck!