I've read the recommended flow rates for the vertical waterfall designs. I'm curious, if you were building a single sided vertical waterfall for a small tank with low bioload (feed 1/8 cube per day), what is the minimum flow that could work????. What size screen (width x height) would you recommend? I'm guessing long but narrow would be best based on my reading.

Would the 2 red led (7 total watts) light from the SantaMonica HOG.5 be sufficient light?

Thanks, Doug