I have never used Eheim filters before. I got this one as a fluk. I found an ad that wanted someone to pick up a fish tank for free. I called went and picked it up. I got a 75 gal with an enclosed stand, that filter, a stealth heater, a 48" light with 40watt Aqua ray bulbs, and enough chemicals and food to last me forever. I don't use a lot of flake. But I have plenty.