Review on capetsma 9-in-1 Aquarium Water Quality Testing Kit - pH, Nitrate, Nitrite, Carbonate, Hardness, Chlorine, Alkalinity, Iron, Copper - Ideal for Freshwater, Saltwater, Pool, and Pond Testing by Willie Carrera

I have tested all 9 of my aquariums. They all showed the same thing with 0 nitrates or nitrites which would be amazing if that were true! Instead, it's dangerous because it's not true! Tested again with the Tetra strips and they showed precisely different readings for each of my tanks, showing some had higher nitrate levels. I want to know the true readings of my reservoirs so I know if I have a problem. The fact that all water values are ideal does not have to be a lie. It may be a faulty batch but I will return it and will not recommend it to anyone. Tetra was actually cheaper, gave accurate readings, and didn't mix.