Filtration

Aquariums are closed systems, without the continuous replacement of water that occurs naturally in oceans and seas. Waste products, uneaten food and decaying plant matter accumulate, stressing fish and causing illness or even death. A filtration system removes many waste products, improving water quality and keeping fish and invertebrates healthy. Filters also help keep water clearer so fish are easier to see and enjoy while and corals receive more direct light.

Aquarium filters use different filtering materials, methods and systems to do their work. Regardless of the type, strength or degree of sophistication of the filtering system used, no filter can remove all waste products. Frequent partial water changes are a must for healthy fish.

for information on filtration methods, materials and filter types.