Water changes, or more precisely partial water changes, are essential for successful aquarium maintenance. They flush out many substances that accumulate in the aquarium water despite filtering and bring in fresh water. It’s just like airing a room. In addition to renewing part of the water volume, it is also extremely important to remove dirt from the substrate. After all, airing a room doesn’t remove the dirt from our carpet. Only the vacuum cleaner can help here. This video explains why partial water changes in the aquarium are so important.
Find out more about changing the water here: Water change