I have a haddoni in my frag tank, I'm getting ready to move him to my display. In the spot where I plan on putting him (in the back next to my overflow), the flow is very minimal. I'm thinking I should add a small powerhead to give the nem some flow. It will be mounted about 2 feet from the haddoni. Any suggestions for the powerhead? Other than providing adequate flow, I want something that's silent. And it should probably have adjustable flow so I can dial it in. A powerhead that can produce a pulsing wave might be nice too.