Salifert test kits are easy to use and accurate salt water aquarium test kits. They offer a wide range of test kits to test the most basic water parameters and even the most advanced ones. They have been in the industry for over 30+ and it is a trusted brand and probably the most well known of all the marine aquarium tests kits. The test are performed using the titration method, essentially color changing. The results are accurate, easy to read, affordable and high quality. If you have any questions about this salifert test kits or testing your water you general please do not hesitate to reach out to us.