>The HOT Magnum is not really a diatomaceous earth filter, even if you can >use some of this powder in one of its operations.
Diatomaceous Earth: A filter media made up of skeletons of Diatoms, used in Diatom filters, able to filter particles down to microns in size.
Dichotomous: Dividing into two equal branches.
diatomaceous earth
Sediment composed of fossilized diatoms; appears to be a very fine powder. Its porosity makes it a uniquely powerful filter media but take care not to inhale it or it can cause respiratory problems.
Diatomaceous earth filters, commonly available in canister filters, can remove particles as small as 3 microns in size which really 'polishes' the water.
...and here are diatomaceous earth filters for the Arctic Canada exhibits.
Mechanical filtering mediums include nylon or polyester floss, foam sponges, fiber pads, aquarium sand and diatomaceous earth.
diatom filter This purely mechanical filter uses diatomaceous earth to remove very fine particles from the water. They clog quickly and are only used occasionally as water polishers rather than continuously.
Diatom Filters use a powder to charge the filter, the powder, diatomaceous earth consist of the skeletons of millions upon millions of two celled animals.
Usually with a media of diatomaceous earth, pre-coat filters remove very small particulate matter, including some bacteria.
Common mechanical filtration sources may include: filter floss, foam inserts, and diatomaceous earth. It is important to rinse out mechanical filter media and replace as necessary.
Diatom Filter - A mechanical filter that uses diatomaceous earth to remove fine particles from the water.
Discus - A type of cichlid fish from South America. Considered by many to be 'The King' of freshwater fish.
Micron filter pads or filters utilizing diatomaceous earth
Extra fine
Removes extra small particulate, even parasites and bacteria.
The water is clearer, but the wastes continue to add to the bioload of the aquarium until the medium is cleaned or replaced.
Water polishing is accomplished by forcing the water under pressure through either diatomaceous earth or micron media.
It relies on the diatomaceous earth (skeletons of tiny animals called diatoms [Diatom comes from the Greek: diatomos meaning "cut in two"]) which "cling" onto dirt and a fine mesh screen to capture the "dirty" diatoms.
 See also: Fish, Water, Filter, Aquarium, Diatom
  
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