How much current do you need in an aquarium? From a tropical stream in south Japan biologist Heiko Blessin explains how important the current is and measures pumps in the laboratory to determine the differences in the currents they generate. What are the real benefits of filters and current pumps?
You can find out more about water movement and filtering in the JBL Themeworld Aquarium under Aquariumfilters & Toebehoren .