Just a little warning after I caught myself being bad. Came home last night and a powerhead had dropped, kicked up sand and shut off the FX-5 or almost no flow. So I took her apart to clean the pound of sand in the sponges and at the bottm but, when I picked her up I instantly noticed the motor was loose to the touch and actually went a little sideways! If you've never taken your motor off there are two o-rings and a couple screws holding all the water in your tank back. I was glad I caught it and plan on checking it every cleaning now. Hope this helps. Cheers!