Fluval AquaClear 20 Power Filter Fluval Flex & EVO Record results over time so

Record results over time so dosing

Approximate diameter: 8"

Suitable for freshwater and marine aquarium circulation

Rinse the test tube after use to reduce staining and residue

GFO should gently move at the surface

Fluval AquaClear 20 Power Filter Fluval Flex & EVO Record results over time soFluval AquaClear 20 Power Filter The Fluval AquaClear 20 Power Filter is a compact clip on aquarium filter designed for freshwater and saltwater aquariums from 5 to 20 US gallons 18 to 76 L. Built on the long running AquaClear platform and updated as part of Fluvals AC Series, it delivers powerful hang on back filtration with 4 stage cleaning, adjustable flow, included media, and a redesigned intake sponge for dependable water clarity in smaller