Oops.. I guess I should learn to read more carefully.
Haha.. I can still answer that question though, kind of.
You want to setup the Seio , like a Tunze powerhead. This makes them less bulky and a LOT more versatile. I don't know how to explain the modification, so let me try to find threads with pictures. If not, I will take pictures for you this evening
If I am still off base, I apologize..
Scott