targetting areas of nano flow

[Waterboy]

I have an 18g cube tank with a built-in sump. It has been set-up for 3 weeks. My return pump is a ViaAqua360. This seems to provide enough turnover and flow for most of the tank. There are some deadspots behind the rockwork that I wanted to target. The only limitation is the design of my tank. It has a cover that makes powerheads awkward to mount. Besides that, I didn't want a powerhead to spoil the look of my tank. Here is what I came up with:

It is a MicroJet 404 with a couple of valves/fittings that I found lying around. I figure with the reducing outlet and the extra head, each tube creates 10g flow/hr. I plan to put this in the sump and feed the tubing through slots in the upper left corner of the false backing or through the overflow slots. I used black tubing because the false backing is black acrylic and would blend in better. Hopefully, I'll install it when I get to work tomorrow!