Aqua One Replacement Filter Sock - 12X11.5X26.5CM - Round Gravel Each unit comes with a

Each unit comes with a 10 gang splitter allowing multiple air stones to be run simultaneously

Use 1 capful (5 mL) for every 80 L (20 gallons*) once or twice a week

Use 5mL per 20L of aquarium water

The ClariSea fleece filter is an ultra compact

Aqua One Replacement Filter Sock - 12X11.5X26.5CM - Round Gravel Each unit comes with aAqua One Filter Socks 200 micron mesh traps fine particles such as uneaten food and microalgae, stopping it from entering the sump and circulating back into the aquarium. The mechanical pre filter action reduces detritus in the sump, helping to improve water quality and maintaining water clarity to provide a healthier environment for your aquatic inhabitants. Features & Benefits: 200 micron mesh traps fine particles such as uneaten food and waste