The filter is ideal for tanks up to 80 litres. It handles gallons per hour. The filter includes filter pads, hoses and all the parts you need to get started. There are space above and below filter pads which you can add filtration media such as activated carbons, ceramic rings or bio-balls (sold separately) to achieve excellent mechanical, chemical and biological filtration. To siphon water into the filter, simply fill the filter with water and turn the power on.