Bcotton and Cecil I think you are right about the nutrients being low in the pond. I have lots of plants and no FA and so it seems the plants are stealing the nutrients and starving the FA and therefore starving the cabbage plants. I would have thought the pond muck would have nutrients but the cabbage plant planted in the muck is the worst of the plants so I don't understand that. Last year I planted some of Bill Cody’s red tip eel grass in muck in my sunroom and they died. I will get the raft cabbage pictures today and post them.