Fx5 might need a new impeller but not positive. It's making a buzzing noise but still operates just fine. It's full of media. Eheim 226o well I can't say enough good about it. This thing is one awesome canister. It filters my 225 flawlessly. Make me an offer on one or both. Open for trades too. Lookin mainly for saltwater equipment but lemme k ow what u have and we shall see! Pm me ur number and I'll call you. Also have othe things fs or ft. Thinning out some stuff. Im sellin these and goin to sumps. Have any sumps?