Although canister filters may appear small, these compact units are designed to provide complete 3-stage mechanical (in some cases, more), chemical, and biological filtration in aquariums. For maximum efficiency, choose one with media chamber holding capacities that exceed your aquarium's bioload filtering requirements. Here are top choices that can be hung on the rim, placed along-side or behind an aquarium as well as under the tank and cabinet out of sight. Available in three models, the Rena FilStar XP Series Canister Filters by Aquarium Pharmaceuticals are multi-stage, bypass-free systems that are highly efficient and versatile. With features such as a unique one-step water shut off and disconnect control lever, multi-use filtration baskets with easy lift-out handle, and many others, they are said to be easy to install, use and maintain. For years many aquarists have felt that you can't go wrong with an Eheim. Even though more expensive than some other canister filters, with the many different styles, models and sizes of canisters to pick from, it shouldn't be hard for any aquarist to find an individual or combination mechanical, chemical and biological filter to meet their aquarium filtration needs from this line of filters. Replacement parts are available. The Fluval G Series is the next generation of canister filters. The G Series features electronic LCD monitoring of filter function and water quality parameters (water temperature and electrical conductivity). The electronic self-diagnostic system continuously monitors water flow through the unit and features an alarm system that alerts the user when parameters deviate from an acceptable range. The programmable schedule reminder feature helps you keep on top of filter maintenance. Mechanical and chemical filter cartridges are independently accessible via the top-load cartridge design. The large-capacity biological media baskets (2 in G3, 3 in G6) house Fluval G Bio-nodes, a high-porosity ceramic bio-media. Despite problems with the old Fluval 03 Series models, such as breaking latches, being hard to clean, difficult to put back together and get started, when the new and improved 04 Series came along, these faults where fixed. At that time it was suggested that Hagen had outdone themselves with this line, but now with their newer 05 Series units, these canisters are better than ever. One of the best features of these canisters is how easy they are to open, remove and clean the prefilter sponges, without disturbing the media trays, and then close and restart them. Available in various GPH output sizes, we consider any of the 04 and 05 units to be top quality canister filters. Replacement parts are available. JBJ are the latest innovation in high capacity filtration systems. This canister filter incorporates high media storing capacity with easy to remove basket trays, self-priming lever, quick disconnect shut off valve for convenient media replacement, and an integrated UV sterilizer with On/Off switch. High-performance, no bypass design mean excellent filtration. Efficient, multistage filters force water through the Stack n' Flo filter media trays to provide exceptional mechanical, chemical, and biological filtration. The result is crystal clear aquarium water and a healthy aquatic environment. Sleek, contemporary filter boasts convenient maintenance features including valve block for quick release, quick prime button, and tote handle. Media included for immediate start-up. Sizes for aquariums up to 150 gallons. The Rapids Mini Canister is a compact and efficient canister filter. Providing 3-stage filtration, mechanical, chemical and biological, aerating and filtering the water every hour. The Rapids Canister Filter has a self-priming, top-mounted sealed motor.

A.P. Rena FilStar XP Series Canisters

Available in three models, the Rena FilStar XP Series Canister Filters by Aquarium Pharmaceuticals are multi-stage, bypass-free systems that are highly efficient and versatile. With features such as a unique one-step water shut off and disconnect control lever, multi-use filtration baskets with easy lift-out handle, and many others, they are said to be easy to install, use and maintain.

Eheim Canisters

For years many aquarists have felt that you can't go wrong with an Eheim. Even though more expensive than some other canister filters, with the many different styles, models and sizes of canisters to pick from, it shouldn't be hard for any aquarist to find an individual or combination mechanical, chemical and biological filter to meet their aquarium filtration needs from this line of filters. Replacement parts are available.

Fluval G Series Canister

The Fluval G Series is the next generation of canister filters. The G Series features electronic LCD monitoring of filter function and water quality parameters (water temperature and electrical conductivity). The electronic self-diagnostic system continuously monitors water flow through the unit and features an alarm system that alerts the user when parameters deviate from an acceptable range. The programmable schedule reminder feature helps you keep on top of filter maintenance. Mechanical and chemical filter cartridges are independently accessible via the top-load cartridge design. The large-capacity biological media baskets (2 in G3, 3 in G6) house Fluval G Bio-nodes, a high-porosity ceramic bio-media.

Hagen Fluval Series Canisters

Despite problems with the old Fluval 03 Series models, such as breaking latches, being hard to clean, difficult to put back together and get started, when the new and improved 04 Series came along, these faults where fixed. At that time it was suggested that Hagen had outdone themselves with this line, but now with their newer 05 Series units, these canisters are better than ever. One of the best features of these canisters is how easy they are to open, remove and clean the prefilter sponges, without disturbing the media trays, and then close and restart them. Available in various GPH output sizes, we consider any of the 04 and 05 units to be top quality canister filters. Replacement parts are available.

JBJ Reaction 4-Stage Canister Filter

JBJ are the latest innovation in high capacity filtration systems. This canister filter incorporates high media storing capacity with easy to remove basket trays, self-priming lever, quick disconnect shut off valve for convenient media replacement, and an integrated UV sterilizer with On/Off switch.

Marineland Multi-Stage Canister Filters

High-performance, no bypass design mean excellent filtration. Efficient, multistage filters force water through the Stack n' Flo filter media trays to provide exceptional mechanical, chemical, and biological filtration. The result is crystal clear aquarium water and a healthy aquatic environment. Sleek, contemporary filter boasts convenient maintenance features including valve block for quick release, quick prime button, and tote handle. Media included for immediate start-up. Sizes for aquariums up to 150 gallons.

Rapids Mini Canister Filter

The Rapids Mini Canister is a compact and efficient canister filter. Providing 3-stage filtration, mechanical, chemical and biological, aerating and filtering the water every hour. The Rapids Canister Filter has a self-priming, top-mounted sealed motor.
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