The SuperFish Aqua-Flow 300 delivers reliable internal aquarium filtration for both tropical and coldwater tanks up to 300 litres. Operating at 540 LPH, the Aqua-Flow 300 Filter ensures consistent water circulation and biological filtration, whilst its compact design fits neatly into most aquarium setups without compromising performance. The specially engineered SuperFish dual-action filter cartridge combines open-structured foam for mechanical filtration with activated carbon to remove odours and discolouration. The additional filter chamber contains highly effective SuperFish CrystalMax, a very porous biological media made from sintered glass. It acts as a sponge for micro-organisms, which decompose harmful waste fast and effectively. The innovative SuperFish Easy-Click quick-release system streamlines maintenance, letting you swap Aqua-Flow Filter Cartridges in seconds. Monthly cartridge changes keep the system performing at peak efficiency, maintaining the water quality your fish depend on. Ideal for aquarists seeking straightforward, effective filtration without complexity.