I clean my HOB filters when ever it needs it. I check them every water change, which I do either every week or every other week. So, usually I rinse the pad about once, maybe twice a month, but only if the pad is slimy. (Which is really gross! haha)
Just so you know, my tanks are understocked with fish and my pads last for quite awhile. So you may have to change yours more often. I don't think there's a standard for cleaning filters. Its basically at your discretion ;-)
Just so you know, my tanks are understocked with fish and my pads last for quite awhile. So you may have to change yours more often. I don't think there's a standard for cleaning filters. Its basically at your discretion ;-)