not at all. the other fish in the tank are all bottom dwellers. the "killzone" is the middle of the tank. anything below that doesnt get eaten. when food hits the ground, they stop going for it and the pictus cats, plecos, and tiger loaches eat.
you're welcome however I wouldn't recommend this practice. the bottom dwellers were in the tank prior to the exodons moving in. I would not have added them in otherwise. also, there are 2 pieces of driftwood that the bottom dwellers hang out under during the day.