API NITRITE TEST KIT 180-Test Freshwater and Saltwater Aquarium Test Kit

Well it works. What else can I say?

Ive used this for years and love it. I stupidly ordered this by accident INSTEAD of the nitrate test kit because I cant tell the difference between a letter change, I guess (to be fair, theyre obnoxiously similar sounding terms even though AMMONIA is ALSO a form of nitrogen and yet IT doesnt have the pre-fix nitro- in the beginning of ITS name; wtf, chemistry?!)

Did the job to help me monitor the nitrites.

Works great. More accurate than strips

Kit is straightfoward to use. Theres a business-card size set of icons on the flip side of the color scale that guide you through usage, and its easy enough that you can figure it out solely from the pictures (there is also a verbose manual in the kit). I find the liquid readout easier to decipher than dip-strips. For most cases in an established aquarium, this test kit will provide the information that you need. Oftentimes you either have zero nitrite, or too much nitrite, and in the case of the latter, this kit is able to tell you whether you have more or less now than when you last tested. A word of caution for anyone doing fishless cycling of a tank: if you oversaturate this test reagent, it will read 0 ppm nitrite at the 5 minute time point. It takes around 100 or greater ppm nitrite to achieve this, and if youre oversaturating, you will see the reagent turn deep purple immediately, then slowly turn pale greenish-blue over time. If youre suspicious that the reading is oversaturated (this only applies if youre cycling a tank without fish, where you might incur substantial nitrite buildup but there are no fish to alert you by dying): just dilute the tank water 10 or 20-fold and test again to confirm your first result. Extending from this: if youre having a hard time measuring high amounts of nitrite because the shades of purple are too similar, just dilute your tank water a known amount, then read and multiply the result by the amount that you know you diluted.

Being new to fish tank keeping after all these years I had to order all of my supplies. This test is easy to use and many many tests in the box. The ONLY downfall to these is honestly the company should re think the shape of these tubes. I can’t tell you how many times they have tipped over lol too tall and slender makes them tip easy

;)

Great test at a great price. Definitely recommended.

Does what it suppose to do

I performed accurate calibration using distilled water and nitrite-ion calibration solution. Every time testing results were 2-4 times lower than expected. 0 and 0,1 values are not distinguishable at all. It is hard to match sulution and scale colors because scale has much more of red.