Although pearsei (and their close cousin bocourti) are basically vegetarian, if a neon swims close enough, it will get sucked up. Both these species get over 14" and will eat all aquarium plants, and small fish.
These species are very opportunistic in their feeding strategy.
I feed my bocourti dandelions from the yard. No plants are safe, mine even ate 3ft papyrus plants and roots. Don't get me wrong, I think both are great fish to keep, but one should be realistic about what is thought of as a community fish.
These are great in large cichlid communities, but in what is thought of as a normal community??????
I also keep Paratilapia (they are not vegetarian), and will see most tetras or small fish as feeders.
Here's dandelion before bocourti, I also fed this when I had pearsei

dandelion after bocourti

papyrus before bocourti, after bocourti, the plant disappeared.
