Why do I suddenly have nitrites?

hattrick58

Member
My Salifert is testing positive for nitrites. I am testing it again w/ Fastest. I had a problem w/ my Salifert ammonia test last weekend so I bought a new kit and it checked fine. Could I have a bad test kit?
 

hattrick58

Member
Fastest tested negative. Checked it again w/ the Salifert and it tested negative this time. Must be a bad kit.
 

bdhough

Active Member
Nice, you answered your own post :)
Sometimes test kits mess up based on user error. I myself have done it tons of times. If you think a test is erroneous by all means test it again. After a while you will get to "know" your tank and won't necessarily need to test it unless you make drastic changes such as adding a couple of fish, inverts, or corals...
 
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