These types of products are so much more reliable and easier to read than the test strips. They cost a little more than the test strips but you get more readings. Great product to have if you own a fish tank, problems in the tank usually start with bad water parameters and this is the best way to get a head start on the problem.

Pros: Very simple to use.

Cons: None.

This product has made it so convenient to check the Nitrite levels in my Tropical Fish Tank. It took several weeks to get my tank in balance and it was much easier to test it at home versus running to the fish store so often. 5 drops in the test tube and I had instant results. Great product!

Pros: Convenient

Cons: none

This was a great test when starting up my salt water acquarium...It was difficult at first to keep everything balanced...and this was one of the test that I used in achieving an ultimate balance in the beginning and a great maintenance tool....

Pros: Easy to use

Cons: None known...

This test kit is easy to use. Fill tube with aquarium water to the line, add 5 drops of liquid, invert several times, wait 5 minutes then compare to the color chip. It is easy to differentiate the color, too.

Pros: Good test kit, easy to perform and read

Cons: None

The product is easy to use, it has easy to follow instructions and best of all it works. It does cost more than some of the strips and other products, but you get what you pay for, it is worth the cost.

Pros: easy to read instructions

Cons: costly