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

Works well to test nitrite, however Id recommend just getting the master test kit for the price of the two. Youre better off getting more tests than just this one. This test has been accurate and helped me lower my nitrites though.

Works like it should.

Since I dont have a precision scientific equipment to compare the test results to, I cant say whether it is accurate or not. I just have to go by faith. The problem I have is with the color coded card. I dont know why it jumps from 2.0 ppm to 5.0. In addition, the shades of purple for these 2 values are just about the same. Sure, under bright light, the purple for 5.0 is (very) slightly darker than that for 2.0; however, since youve to compare the color of the glass tube to the chart, the colors of these 2 values are practically indistinguishable as are the colors for 0.25, 0.50 and 1.0. Sad to say I dont find the test very useful. All the shades of purple are too similar to make an accurate diagnosis.

Easy to use, great bargain

Works in 5 mins. Easy to use and gives accurate readings.

Only problem I have with this is the shipping was terrible Missing parts. But Amazon honor with the replacement right away.

This product is a must have for testing the water parameters in your tank. I will be ordering again when I run out.

Kit works well.

It works.

I worked in three pet shops as a teen and later managed the slat water department in a very large pet shop in Philadelphia. I have kept fish since I was five years old but have been on hiatus for the past 20 years and not had any tanks. These kits have been around for ages and are very accurate if you use them for their true intended purpose; freshwater community tanks or similar. Dont try and use these the nitrite or ammonia for saltwater tanks of any sort. Dont use the pH test kit for tanks that need exact pH values for high pH animals like cichlids (though this is less of a problem if you read below). These tests are extremely economical and provide many more tests per dollar than any other kits available. My son is six and my daughter is four. We decided to raise tadpoles twice this year and needed to monitor ammonia, nitrite, and pH. The 40-ish year old design of these kits still fit that bill perfectly and were exactly what we needed. I wish the scale on the pH kit went higher, but it goes high enough for community fish. Tadpoles here tend to like higher pH values of ~8.2 and the pH kit doesnt go that high. However, I got a rough enough estimate if the pH test indicated that the pH was off the chart high as water isnt going to go much above 8.2 unless you use chemical inappropriately. Ammonia and nitrite test kits worked perfectly as in the past and averted many potential tadpole disasters and crying children. Weve kept snails, clams, some minnows, and loads of plants in the tank while the tadpoles have developed so the bio load was always changing. Still great kits even after 40 years at a very affordable price. Highly recommended for their intended usage scenario.