The Fluval AquaClear AC70 is a hang-on-back aquarium power filter designed for aquariums up to 70 gallons. It provides mechanical, chemical, and biological filtration in a compact HOB design that works well for many freshwater and saltwater aquarium setups. The AquaClear AC70 uses an open media basket that allows aquarists to customize filter media based on the needs of the aquarium. It can be used for community tanks, planted aquariums, cichlid setups, goldfish tanks, quarantine systems, and other appropriately sized aquariums. Key Features Hang-On-Back Design: Installs on the back rim of compatible aquariums For Aquariums up to 70 Gallons: Suitable for many medium to large freshwater and saltwater setups Customizable Media Basket: Open basket design allows media to be adjusted for the aquarium’s needs Multi-Stage Filtration: Supports mechanical, chemical, and biological filtration Lift-Out Media Basket: Helps make routine maintenance easier Freshwater & Saltwater Use: Can be used in freshwater, marine, and FOWLR aquariums when maintained properly Product Information Brand: Fluval Model: AquaClear AC70 Product Type: Hang-on-back power filter Aquarium Size: Up to 70 gallons Flow Rate: Approximately 300 GPH Filtration Stages: Mechanical, chemical, and biological Included Media: Foam insert, activated carbon, and BioMax media Use: Freshwater and saltwater aquariums Best Uses Freshwater community aquariums Planted aquariums African cichlid aquariums South American cichlid setups Goldfish tanks with appropriate maintenance Quarantine and hospital tanks Grow-out systems Fish-only saltwater aquariums Filtration Benefits The AquaClear AC70 supports three common types of aquarium filtration. The foam insert helps collect debris and provides surface area for beneficial bacteria. Activated carbon can help remove some dissolved organics and discoloration. BioMax media provides additional surface area for biological filtration. Because the media basket is open and customizable, aquarists can adjust media choices based on stocking level, water clarity needs, planted tank goals, or maintenance routine. Setup & Maintenance Tips Rinse filter media before first use using aquarium-safe water Prime the filter according to the manufacturer’s instructions before plugging it in Do not replace all biological media at once, as this may reduce beneficial bacteria Clean the impeller and intake as part of routine maintenance Check flow regularly and service the filter when output slows Maintenance frequency depends on stocking level, feeding, and aquarium bioload Frequently Asked Questions Can I customize the Fluval AquaClear AC70 filter media?Yes. The AC70 has an open media basket that allows aquarists to adjust or replace filter media based on the needs of the aquarium. What size aquarium is the AquaClear AC70 for?The Fluval AquaClear AC70 is rated for aquariums up to 70 gallons. What is the flow rate of the AquaClear AC70?The AC70 has a listed flow rate of approximately 300 gallons per hour. Can the AquaClear AC70 be used on saltwater aquariums?Yes. The AC70 can be used on freshwater, marine, and FOWLR aquariums when properly maintained. How often should the AquaClear AC70 be cleaned?Maintenance frequency depends on aquarium size, stocking level, feeding, and bioload. Many aquariums benefit from filter inspection or cleaning every 2–4 weeks, but heavily stocked tanks may need more frequent service. Does the AC70 include filter media?Yes. The Fluval AquaClear AC70 typically includes a foam insert, activated carbon, and BioMax media. Available at Tropical Treasures Wyo The Fluval AquaClear AC70 Power Filter is a hang-on-back aquarium filter for aquariums up to 70 gallons. Visit Tropical Treasures Wyo in Cheyenne, Wyoming, to shop Fluval filters, filter media, aquarium supplies, water conditioners, heaters, fish food, live plants, and aquarium care essentials.
