Easy to install and use, this internal power filter from Interpet is great for freshwater aquariums both tropical and coldwater. It uses a simple cartridge system which allows for the easiest of maintenance and excellent water clarity and healthy conditions. Supported on a sucker mounted cradle it can be placed on the back or on the side of the aquarium making it simple to hide with suitable plants or decor. The Biomedia creates healthy water by acting as a home for essential bacteria which remove toxic fish waster. Mechanical Floss clears water by trapping fine waste. The Carbon purifies water by removing dyes, toxins, heavy metals and odours and a unique Algae pad keeps unwanted algae away. The CF1 Filter is for aquariums from 36 to 68 litres in volume giving a maximum flow rate of 320lph and using a power consumption of 3.3 watts.