Thanks!! I will try to plant my next batch of lillies elsewhere and put some chickenwire around them (I assume putting larger holes on the underwater part of the cage will be necessary to allow the larger GS and YP to access them). I am really frustrated with the eel grass and at this point I am looking for another alternative. I think my pond water is too cold as it has a spring in the bottom and the stream that feeds it is entirely spring fed. Maybe I am just planting them too early or my crayfish are wiping them out. Any ideas for alternative plants?