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How to Make Your Own Underwater Aquarium Filter

Steps

Obtain these materials for your filter: a sponge or other thick mesh material, an open top container (i.e. the bottom half of a plastic water bottle), a standard aquarium powerhead or submersible water pump, some activated carbon, and air tubing (must be able to fit pump nozzle).
Make sure your powerhead or submersible pump fits into the open top container while still allowing generous room for the sponge material and carbon.
Pour some of the activated carbon into the container.
Wrap up the intake valve of the pump or powerhead with some fine mesh material. A pair of women's nylon stockings would be an ideal material.
Place the wrapped pump into the container, pressing it snugly into the activated carbon pieces.
Fit a piece of aquarium tubing onto the output nozzle of the pump. A three inch piece of tubing would be fine.
Cut pieces of sponge material to fit the container. Cut small holes in those pieces to allow the aquarium tubing to go through.
Slip the pieces of sponge material into the container, making sure that the aquarium tubing comes out.
Secure the filter with some string or rubber bands.
Place the filter in an inconspicuous location in your tank and turn it on.
Enjoy a tank with cleaner water!

Tips

Initially, the filter will only pick up pieces of debris and feces in your tank. But as time progresses, bacteria beneficial to your tank will accumulate in the sponge material, allowing the filter to perform chemical filtration of your water as well.
Make sure your powerhead or pump is size-appropriate for your fish tank - i.e. a 10 gph pump for a ten gallon tank.
If you have an adjustable power pump or powerhead, make sure that the output power is set at a desirable level for your type of fish tank.
You can bury half of your filter in your tank's gravel to keep it secure, or have it stand upright.

Warnings

Regularly check your filter to make sure that it is still working. A malfunctioning pump is hazardous for your fish as well as you.

Create Date : 29 ธันวาคม 2549

Last Update : 29 ธันวาคม 2549 11:24:52 น.

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