Eheim Aquaball-Biopower

[bart.2010]

hello, can anyone out there tell me if the eheim biopower cannisters fit onto the aquaball as i want to add more biological filtration to the aquaball. i have the 180 and seen the cartidge for the biopower on ebay.part no 7444620 .if it does i could fill it with subsrtat pro and have the best of both worlds.thanks bryan