FX-5 came with a complete set up I purchased off CL
, so I was very lucky, 72G oceanic bowfront w/matching stand and all the decos, sand and fx5 Aqueon water changer, chemicals, foods, etc., like new, for $200! Very lucky!
If you clean the gunk out of where the impeller is, you can use a tweezer to get the impeller out if it, if it is hard to get out, it probably will work fine. Q-tip out the sludge!
You can add a second filter pad in there and build up double the BB.