I think what you have is just fine. Unless your filter is creating a little hurricane, I find that the plants in the tank do a lot to baffle the flow.
I have 2x Aqueon Quiet Flow 10 on a 20 long, and it doesn't seem to bother my CPDs at all. They do tend to spend more time in the stiller areas of the tank, but will venture into the flow of the filters looking for food. No fatalities, excellent colors, some breeding behavior. I do have sponges over the intakes, and a sponge in the filter box. I do 10-20% water changes weekly. Even though it's probably not necessary to change the water that frequently, it makes my plants, and me, happy.