Cascade Filter Exo Terra AC50 Power Filter for Aquariums, Flow 76–190 L/h

Exo Terra AC50 Power Filter is a cascade-style external filter designed for small aquariums. It delivers mechanical and biological filtration via replaceable media cartridges and offers adjustable flow control with a rated flow range of 76–190 L/h. The compact mounting system fits on the back of the tank and the filter is suitable for freshwater and planted aquariums where stable water clarity and reduced waste are required to support aquarium ecology.

Advantages

The cascade design provides gentle surface agitation while drawing water through mechanical media to remove particles and into bio-media to support nitrifying bacteria. Replaceable cartridges simplify maintenance and reduce the need to handle loose filter media. Adjustable flow control lets you match circulation to tank inhabitants and planted setups, and the external hanging mount keeps equipment outside the aquarium to save internal space.

Suitable for

• Small freshwater aquariums
• Planted tanks with moderate flow requirements
• Community fish tanks with low to medium bioload
• Beginners who prefer cartridge-based maintenance

Key specifications

• Filter type: cascade / external hang-on-back
• Flow rate range: 76–190 litres per hour (adjustable)
• Filtration stages: mechanical and biological via replaceable cartridges
• Mounting: compact back-of-tank hanging design
• Suitable water type: freshwater, planted aquariums
• Maintenance: cartridge replacement for media renewal

How to use

Install the Exo Terra AC50 on the rear rim of the aquarium so the intake reaches the water column according to the manufacturer’s fit. Prime the unit if required, then set the flow control to a low or medium position and observe water movement and fish behavior. Replace cartridges on the recommended schedule or when flow decreases; rinse the intake and impeller area periodically to prevent blockages. Always follow safety instructions and disconnect power before servicing the filter.

Usage recommendations

For planted tanks and delicate species, start with a lower flow setting and increase gradually while monitoring plant movement and fish stress. Replace used cartridges with the manufacturer’s compatible cartridges to maintain both mechanical and biological performance. Regular partial water changes combined with cartridge maintenance will help preserve water quality and stable aquarium ecology.