I've already got a sponge on the intake to keep the baby shrimp and snails from being sucked in, but it doesn't really seem to make much difference - other than it looks a lot better than the hose knee-hi that I had on there before. However, I am concerned about damaging the pump by restricting the water flow that way. I was thinking more in terms of something to deflect the flow.
I have to admit, however, that Bobby seems to be getting around just fine today. He is happily playing the Mighty Hunter and sneaking through the plants to terrorize the smaller red cherry shrimp. It seems the only place he runs into trouble is directly under the "waterfall" out of the filter, so maybe this is a non-issue.
I was just hoping to maybe deflect the current against a wall or something and decrease the surface ripple without giving up the benefits of good filtration.