 More aggressive mimics have a greater negative impact on the foraging rate and success of the cleaner fish.When mimics appear in higher densities relative to cleaners, there is a significant decline in the success rate of the cleaner fish.The effects of the mimic/model ratio are susceptible to dilution, whereby an increase in client fish allows both the mimics and the models to have more access to clients, thus limiting the negative effects that mimics have on model foraging success.