Yes i have on in my tank, it seems to work ok i havevremoved half of the bioballs and added seachem matrix and waiting to see if this helps remove the high nitrate levels i keep getting(20ppm) but it keeps the water nice and clean and is a fairly quiet system.i would like to try other media in the baskets and will do when i finish design and making a hang on back refugeium that is a work in progress at the moment.there are pics of my here