Aquarium Filters

The importance of aquarium filters

Aquarium filters are just as important to a fish's quality of life as proper food and light. Designed, to help keep the environment healthy, a good aquarium filter is a must.

Why are aquarium filters so important?

You need a quality aquarium filter to help maintain a healthy environment for your fish and aquatic plants. Aquarium filters help by preserving the state of the tank in between cleanings. However, it's important to note that the addition of aquarium filters doesn't mean you can eliminate cleaning the tank. You should still anticipate thoroughly cleaning the tank occasionally and changing the water at least once a week.

What do they do?

You probably have a general idea of what aquarium filters do and how they work, but here's a quick overview of its three chief jobs:

Removal of waste: Aquarium filters use screens or sponges to trap and remove waste and debris from the water.

Maintain a healthy environment: In addition to removing waste, most also are capable of removing carbon and ammonia from the atmosphere.

Water treatments: In order to keep the water balanced, some add required chemicals in an effort to sustain superior water quality.

What's available?

Here's a closer look at some of the different types available:

Box filters: Also called corner filters, these aquarium filters are typically made of plastic. They are small enough to fit in the corner and connect directly to an air pump. This type of aquarium filter can typically be purchased for under $10.

Under gravel filters: These aquarium filters slide under the gravel at the bottom of the tank and connect to an air pump or power head. These generally cost anywhere from $20 to $50.

Fluidized bed filters: These aquarium filters simply hang on the side of the aquarium. While they are generally more efficient, these also are typically also more expensive than other filters, starting around $50.

Canister filters:  Like the fluidized bed filters, canister aquarium filters hang on the side of the tank, but have their own internal pump. Depending on the features it has, you should expect to pay around anywhere from $50 to $120 for one.

Sponge filters:  Ideal for tanks with baby fish, these eliminate any fear of fish being sucked into the by surrounding the filter with a sponge. These usually cost around $10.

When in doubt

If you still aren't certain about which type you need, talk to the manager of your local pet store. Be sure to let them know what type of aquatic life you have.

More information on aquariums