Canister Filters Can Be Used For Biological Filtration In Your Saltwater Aquarium System: Robert Fenner, Owner Of The Sea World Aquarium In Fort Lauderdale, Fla

A canister filter can be used continuously or added and run only when needed. They can act as a stand-alone filter or be used in combination with other filtration systems. Granular activated carbon (GAC) is used to remove odors, medications, or other contaminants in the water. Canisters are not the best choice as a source of biological filtrate. Most do not have a chamber big enough to hold a sufficient amount of bio-media in them. The flow rate on the manufacturer's instructions is reflected as an empty filter with zero head pressure. For the hang-on-type canister, you will get a water flow rate closer to what the manufacturer states. Never turn your water over too many times. There are many brands of canister filters to choose from. Some are made with special features, such as ones that use powder or diatomaceous earth to step the filtrated water up to very fine levels. Robert Fenner says these types can be classified as "pressurized filters" that can jack up your electric bill. Buy extra micron-pleat cartridges, floss, sponges, granular activated carbide, and other filtering materials or absorbing products for cleaning. If you don't, maintenance will be neglected because it's a pain to service the unit. . . .

Tags: Aquarium/ Marine/ Water Quality/

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