Aquarium Systems Duetto Multi-Function Internal Filter (13-66 GPH)
Duetto Multi-Filter is a compact internal filter that efficiently packs maximum features in minimum space.The multi-filter internal chamber has separate components for mechanical, chemical, and biological filtration, permitting easy replacement and cleaning of the chemical and mechanical filter without disturbing the biological filter.The aeration feature mixes filtered air with pumped water to provide complete aeration, improving the oxygen/carbon dioxide exchange. The multiple output adapters allow either flat output for easy direction of water, or round output for easy connection to flexible tubing.The Duetto Multi-Filter is totally submersible and can be positioned vertically against the aquarium wall, or horizontally on the floor of an aquarium or terrarium.Can be adjusted for minimum or maximum flow.

Aquarium Systems Duetto Multi-Function Internal Filter (27-92 GPH)
Duetto Multi-Filter is a compact internal filter that efficiently packs maximum features in minimum space.The multi-filter internal chamber has separate components for mechanical, chemical, and biological filtration, permitting easy replacement and cleaning of the chemical and mechanical filter without disturbing the biological filter.The aeration feature mixes filtered air with pumped water to provide complete aeration, improving the oxygen/carbon dioxide exchange. The multiple output adapters allow either flat output for easy direction of water, or round output for easy connection to flexible tubing.The Duetto Multi-Filter is totally submersible and can be positioned vertically against the aquarium wall, or horizontally on the floor of an aquarium or terrarium.Can be adjusted for minimum or maximum flow.

Aquarium Systems Maxi-Jet PH Power Head 1200 (295 GPH)
The Maxi-Jet 1200 with its 295 gph output is the ideal powerhead for powering undergravel filters or creating internal water movement. The Maxi-Jet Powerhead runs silently and is designed to assure that even if it runs dry, or the rotor jams, the Maxi-Jet will not overheat. Maxi-Jet incorporates a venturi aeration device to provide optimal aeration and gas exchange in the aquarium. A silencer feature keep the venturi aeration device operating quietly. The adjustable air filter feature permits the user to fine-tune air volume and water mixing as desired. The Maxi-Jet has a fully rotational output to direct water anywhere in the aquarium. The intake tube adapter with prefilter screen prevents gravel or loose material in the aquarium from getting into the pump. An accessory kit includes an innovative triple-suction cup mount, an adjustable hook with cable guide, and a grid support for optional foam cartridge. Ideal for use in all aquariums, fresh or saltwater.

Aquarium Systems Millennium 2000 Wet-Dry Multi-Filter for 10-40 Gallon Aquariums (160 GPH)
Mechanical, chemical, and wet/dry biological filtration in a tank-mounted external filter unit pumping 160 gallons per hour. The Millennium multi-filter features the BioGrid plate which provides high surface area as support for nitrifying bacteria that perform the important function of biological filtration--oxidation of toxic ammonia to relatively non-toxic nitrate. The BioGrid plate is totally separate from the mechanical and chemical filtration. This preserves the biological filter even when the mechanical/chemical filtration cartridge is replaced. The ImpellAir pump assembly, using venturi action, mixes fresh air with aquarium water before it passes through the BioGrid plate. As it passes through the plate, the biologically active surfaces are exposed to both dissolved oxygen in the water and undissolved oxygen in the air. This wet/dry action provides the nitrifying bacteria with much more oxygen than would normally be available, which greatly increases efficiency and capacity of biological filter. The MechaniChem filtration cartridge contains two layers of polyester fabric enclosing activated carbon in a single convenient unit. The polyester fabric traps particles, while the activated carbon is housed in a unique baffle system that ensures the entire stream of water flows through carbon during every pass through the filter. The AdjustaFlow telescopic siphon intake tube easily adjusts to various depths, and water flow is regulated by a top-mounted control. The flexible design permits easy removal of the intake tube for cleaning without removing the ImpellAir assembly. The two units can be removed together in one single step for more significant cleaning. Includes free Mechanichem cartridge.

Aquarium Systems Natural Wave Multi-Cycle Pump Timer ()
In aquariums with live rock and corals, stagnant areas (dead spots) and piles of toxic waste products can accumulate--seriously affecting the health of your animals. The Natural Wave pump timer creates alternating water currents in your aquarium when connected to pumps or powerheads. These alternating water currents reduce dead spots and can keep detritus (waste) in suspension, allowing it to be more easily captured by filters. Circulation provided by the Natural Wave pump timer also stimulates live corals by periodically flushing waste products away. In addition, the surging currents created by use of the Natural Wave pump timer mimic actual wave patterns in the ocean and provide a more realistic environment for your corals. The Natural Wave is a multi-cycle pump timer with six outlets. Two of the six circuits that have timing patterns alternate on/off with adjustable periods of 20 seconds to three minutes. The third circuit has a double cycle of 40 seconds to six minutes. Connect the pumps of your choice and design the best wave patterns for your aquarium. These circuits provide the optimum flexibility for you to create random circulation patterns. An illuminated indicator lets you know the cycling times. The remaining three outlets are standard power outlets and can be used for accessories such as filters, lights, or heaters.

Aquarium Systems SeaClone Protein Skimmer (18" Height)
Simple and easy to use design. SeaClone can be used as a hang-on or sump model. No airstones necessary. More efficient than air-driven protein skimmers. Kit includes protein skimmer and MP 1200 Maxi-Jet Power Head. SeaClone Protein Skimmer doesn't look--or perform--like any other protein skimmer. What you notice first is how much more efficiently SeaClone Protein removes organics and wastes from your aquarium. Utilizing the forces of nature, SeaClone creates a tornado of air and water that draws wastes into its powerful vortex, pushes wastes up the column, into the collection chamber and out of your aquarium, resulting in a clean, healthy aquarium. Turbo-Venturi Injector System mixes water and air in the pump impeller changer, creating a froth of micro-bubbles for maximum efficiency. The micro-bubbles also improve gas exchange. The vortex of air and water created in the Vortex Reaction Chamber draws organic wastes from the water. At the top of the tube, the spiraling air/water mixture propels protein laden bubbles into the collection tube above. The bubbles burst, forming a frothy solution which gathers in the collection chamber. Dissolved organic compounds collect in the large capacity collection chamber, keeping waste separate from clean water until it can be removed for cleaning. The large capacity cup holds more and requires less frequent emptying.