I think for large aquarium or small pond use I would rather use one of the bead filters. They take less space and can be hidden under neath the tank or in the next room,don't have to be level with the tank,can be run at different depts,can be run at more GPM,are easier to plumb,and easier to clean.The advantage of a easy pod is you can use a more economical pump (less electric),the media is exposed to air and will stay more active in a power outage and is cheaper to buy. A vortex works well pror to a bead filter. also a trickle tower after a bead filter is a good idea