Maybe a dozy question but do I need to clean the filter each week? I understand that you need to use established aquarium water, but I am interested as my tank has just started cycling and I feel happy to leave well alone for a few days to let everthing settle. (WE have had a crisis because we hadn't heard of fishless cycling until we came on here

) ) Everything is now fine and the tank is cycling but I am reluctant to start messing about with filters etc. The filter is pretty gopping mind! Just a quick rinse?
Jane