Review on 🌊 Aquarium Water Test Kit - API Carbonate Hardness Test Kit by Lisa Walton

These test cases may be considered entry level test cases by some hobbyists, but for the most part they are good enough. They make it quick and easy to get readings and move on. If you need digital reading, there are some that are expensive. It's just that the regent needed to run a digital test is more expensive than an API test kit. You'd better use an API test suite and run an ICP test periodically depending on your budget. You can do this annually, annually or quarterly.