looks like your getting a pretty good current out of that power head. Ill be interested in what livestock you chose. I just added my fish to my 12 gallon long tank yesterday and had to change the flow quite a bit as i had a similar setup, but was to strong for my fish and looked to be stressing them out. They all sort of just piled up at one end of the tank.
Right now I'm leaning toward shrimp only, and I'm trying to decide between CRS, CBS and OEBT. Ideally I'd get black tigers like those currently on the SnS, but they're a bit outta my price range...for now.
The powerhead is a Koralia nano. It's actually pretty gentle. I was even thinking about moving one size up.