Hopefully today I should be receiving my second Eheim filter. My tank is a Rio 240 and at present has just a few small plants, in a couple of weeks it's having it's transformation into a planted tank. At present I have an Eheim 2071 with the spray bar on the left side pointing across the tank with the inlet next to it. What I am thinking of doing is putting the new Eheim (2073) spray bar underneath that one and having both inlets it the other corner at the back right, hopefully giving a kind of river effect. Is this a good idea? I was also thinking of putting a powerhead in the right corner at the back pointing across the tank to ensure good flow across the back and in the back left corner.