What we eat is what we are, therefore all living things consume by the mouth and that is the importance is what make us. Irregardless if the end result is rewarding or otherwise depends much on the beneficiary. So the filter is an important element for the aquatic science mechanism, its a system to purify and normalise the water structure and parameters. This is made of the physical layer and the biological chemisty to cause the water content to be as ideal as possible. Meaning the ph balance, the hardness and alkaline balance must be that against the toxic and nitro effects within the liquid state, thus eliminating harmful bacteria and unsafe chemicals to damage the living state of the organism.