Drs. Foster and Smith Coarse (Black) Filter Pad | Aquarium Filter Media at DrsFosterSmith.com
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Coarse (Black) Filter Pad - 1" thick x 12" x 12" by Drs. Foster & Smith

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Drs Foster and Smith Articles

1. Mechanical
Mechanical filtration can greatly improve the health of most aquariums, and is also important for the efficiency of your biological filtration. The process is simple: mechanical media strains solid debris.
2. Biological
Biological filtration is the action of bacteria breaking down dangerous ammonia, converting it to nitrite, and then converting nitrite to less toxic nitrate. This article discusses how the process works.
3. Chemical
While most aquarists agree biological filtration is imperative for your aquarium's health, not all agree that mechanical and chemical filtration is absolutely necessary.
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