barbianj
New member
<a href=showthread.php?s=&postid=15084787#post15084787 target=_blank>Originally posted</a> by DamnPepShrimp
API doesn't work on cupramine, you need salifert test kits. Also, be aware when using cupramine, it can make some ammonia test kits faulty, only certain ones are exact.
I had read somewhere on the great Interweb that someone had the same results with API and Salifert. That's obviously wrong.
I also have the API test kit, but my ammonia has always been zero. Nitrites are 0 and Nitrates were 20 before an 80 gallon water change. Do you know which ammonia test works with Cupramine?