Under Gravel Filters

8.5. Under Gravel Filters

Under gravel filters consist of a plastic grate or “filter plate” which lies under small gravel in the aquarium. Under-gravel filters are great for biofiltration (the media volume is second only to sumps) and crystal-clear water AS LONG AS YOU DON’T CLEAN THEM BUT EVERY FEW YEARS.


1.1.6. Filter media for an aquarium

Filter media is the stuff inside a filter. It is something that grows beneficial bacteria on its surface These beneficial bacteria remove fish pee (ammonia) from the water. Filter media is important to the health of the fish.

Uncleaned Mechanical Filtration

6.1.2. Uncleaned Mechanical Filtration

Uncleaned Mechanical Filtration: This concept is where a hobbyist doesn’t clean the mechanical filter. Instead they let the solid feces and uneaten food just naturally decompose.

Mechanical Filtration

6.1. Mechanical Filtration

Mechanical filtration in an aquarium is the removal of particles the hobbyist can see. These particles include fish feces and uneaten food. This is what most beginners think is the most important type of filtration. It is relatively unimportant.



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