Instructions
First, pour tap water onto a pot on the stove until it reaches a boiling point.
Next, collect the steam. As the water boils, steam will begin to pour out from the top. This steam needs to be collected into a separate container. After enough steam is collected you will eventually start to begin to see water in your separate container.
Store the steamed water in a cool place.
Dump the water from the pot on the stove out as this water contains chemicals that are harmful to your fish. Steam is very light and less condense so it does not provide any of the impurities found in tap water.
How to Make Distilled Water
Distilled water is used for aquariums and fish tanks. The reason distilled water is used is because of the minerals it provides for the fish. Distilled water has a low pH, which is the opposite of tap water. Buying distilled water a store can get expensive after a while, especially if you have a large fish tank. Learn how to make your own distilled water at home.