Nitrate Test Kit For Freshwater/saltwater Aquariums

I've been using this test kit for a couple years for my saltwater tank. I think it is accurate, but it is very hard to differentiate between the yellow colors for the lower nitrate levels (below 10). Make sure you only use the kit for a few months and then get a fresh one because the chemicals seem to lose accuracy/effectiveness after they've been open for awhile.

Pros: Pretty easy to use and fairly quick-only takes about 7 minutes in total

Cons: Very hard to differentiate between levels of 0, 5, and 10

I have been using the Nitrate test kits for 9 years now. It is so important to test the water in the tank. Nitrates are silent killers. This test kit is fairly easy to use although not as simple as dipping the strips into the water. It is also more accurate than the strips.

Pros: helps maintain safe tank water

Cons: Not as easy to use as test strips