I have a fairly heavily stocked 75 gal... many many small fishes + shrimps...
I currently have a 2236, 2028 and a HOT magnum running on the tank. I also have a korilla #3 on the tank to circulate the water.
I love my Eheims, they are quiet and hold reasonable amounts of media. They are also very easy to work on....... the catch is that..
they are expensive to buy.
Have very little flow, even the 2028 has minimal flow. This means that while they will work great for breaking down the ammonia, they don't do well polishing the water. For this I'm running the HOT magnum stuffed with just plain filter floss. This filter pulls out more "gunk" from the water than both the Eheims combined. Also, when the eheims break, there is no real source of parts of them. Everybody sells them but not many places will have all the parts in stock. The parts are also very expensive.
having said that, would I buy another Eheim....... Oh yeah... I have 5 of them right now and won't hesitate to buy another
