I had a bunch of vals in a 125 with them and my longear destroyed them all. They will EAT them. They were pooping out pieces of plant, so I know they were actually swallowing them.
So, they may work with some plants, but they will eat others. They also like tearing them up just for the sake of doing so. Kind of like south american cichlids. I didn't have trouble with any of my other sunfish with the plants, but the longears were destructive.