Join Date: Sep 2009
Location: mt washington MA USA
I have five planted tanks that I routinely test for nitrates, nitrites and ammonia. I have been using mainly API test kits and the levels of nitrates are around 5 to 15, ammo is zero, and on the API test kit, the nitrite is zero. However, the API nitrite test kit only goes from zero to .25. I also have a Seachem nitrite test kit, and on that test kit, all my tanks are testing positive for nitrite in the range of .1 or so, sometimes a bit higher.
Since the API kit doesn't have any scale for less than .25, I am wondering if I need to worry about these lower levels according to the Seachem kit?
Why does one kit have such a different measuring scale from the other? Is .25 the first detectable level where we need to take action?
I have tested my RO water that I use for all the tanks, and it tests zero for nitrite on the Seachem test...
Thanks for any feedback,