Thats exactlly why I did away with the hang off the back type of Filters.
The problem of the Overflow all over the Place.
Thats why i have went to the Magnum 350 Canister, Minus the 2 Bio Wheels.
You might Say I want to cut down on the turbulance of it, and this would be Worse.
But heres what I did.
I took off their Exchaust Output, and replaced it on the end of the Exchaust Tube with an Old Intake Strainer of the Hang on the back filter I use to have.
Didn't effect the Filteration one Bit, Same Intake and Exchaust Rate, BUT 98% less turbulence. throughout the tank.
Now instead of all the flow going in one direction, It's now dispereced in all directions, Including downward.
I don't know if this is suitable for you or not, but it Worked for me, And ya never can tell it might just Help Someone Else.
![S :S :S](/images/smilies/ipb/wacko.png)