Sicce Space Eko+ 300 External Aquarium Filter, 240 GPH; Start tidying up your favorite fish’s underwater environment with the Sicce Space Eko+ 300 External Aquarium Filter! This durable and compact external filter is designed for use in freshwater aquariums, saltwater aquariums or ...Sicce Space Eko+ 300 External Aquarium Filter, 240 GPH; Start tidying up your favorite fish’s underwater environment with the Sicce Space Eko+ 300 External Aquarium Filter! This durable and compact external filter is designed for use in freshwater aquariums, saltwater aquariums or turtle tanks up to 80 gallons in size. Its energy-efficient design allows it to produce a flow rate up to 240 gallons per hour while consuming just 14 watts of energy. And its near-silent noise output helps keep your focus on your aquarium—and not on your filter.