July 29, 2011 – Any aquarium enthusiast knows that the key to any thriving underwater ecosystem is a proper filter. The filter keeps the water clean, and in many cases is the source of the chemicals used to maintain the ph balance of the water. This filtration ensures that the plants, fish and other creatures stay healthy and vibrant. A canister filter is a powerful external filter that is considered the work horse of the aquarium filter family.
Canister filters use any combination of filtration methods to clean the water while also maintaining a particular ph balance. Depending on the type of aquarium you maintain, you can adjust the filtration within the filter easily between chemical, mechanical or biological filtration, or any combination therein. High quality canister filters, like the Eheim 2213, come with everything you need to get started, including a selection of filtration pads that allow you to adjust for your specific needs.
These filters are more expensive than your standard filters but they are also known to last a lot longer. Any top brand name canister filter from makers like Eheim or Fluval should last you many years. In addition, the upkeep of these high-end filters is significantly easier than their cheap counterparts and occurs less frequently. You can run a canister filter for months without having to do any maintenance, including changing the filtration medium. This results in a reduced cost over the life of the filter, as well as saving you a lot of time and hassle.
These large, powerful filters can also power through a large amount of water, and their performance as far as gallons filtered per hour is unmatched. Due to their size, and method of filtration, they are external filters that are generally stored under the tank in a cabinet. This means you have a better level of filtration, and you maintain the aesthetic appeal of your aquarium without having some cheap unsightly filter hanging on the side.
As you can see, the canister filter is the way to go if you’re a serious aquarist. If you’re not serious, you can go ahead and keep buying those cheap filters that break all the time and keep killing your fish.