Your Oratory

In the same way that a body’s liver cleanses the impurities from our body, a pond filter cleanses the water in our pond. In most cases, in nature, pollution is not a problem as the water that a fish lives in is constantly replenished by the moving nature of the water.

Fresh water constantly replaces old and refreshes the environment. Within a pond, however, you are working with a closed environment. And most of the  impurities that that are dumped into it will remain there and build up unless they are removed. It’s the pond filter that is the agent that acts to remove these impurities and, much the same as your liver, the better you care for it, the better it can do its job of keeping the pond water clean.