Weather you are a hobbyist with just one aquarium or several aquariums, water testing is very important. If you are setting up a new aquarium or you are seeing sudden deaths in your fish or shrimp, you need to know what's going on in your water.
A quick test of the water in your aquarium can let you know if it is safe to introduce new fish or shrimp and/or why you are seeing deaths in your aquarium. You then know what steps you need to take to get your aquarium water to a safe level so your fish and shrimp can thrive.
There are several water testing products to choose from all of which are easy to use and have clear instructions and charts.