I have one that I bought less then a month ago and it is nice. The sump has 5 compartments. Two of the compartments, on each side is for overflow. The other two is a spill way that flow into a sump compartment that contains two 1000L/h pumps. Its all glass no plastics divider or the glass that separate the front of the aquarium and the sump. I dont have pics, but if u go to ********* site and go to nano. A guy name Andywe has a pic up, but not of the sump. I will post pics a little later