So you cut all the lily pads off and just leave the tuber Addy?
Like they are saying above, I cut off all the leaves and buds, living and dead, except the tiny new growth ones, they take off in the spring.
Any other plants I cut off any dead and living matter, with my plants I leave the pots where they are. The lilies I just make sure the tuber is at least 12 inches down. The lotus stay where they are the tubers are around 18 inches down.
Parrots feather, hornwort, aracharnis, all stay where they are, usually floating in the pond.
The only plant that gets special attention is the red stem parrots feather, it is in a small pot and to survive needs to be sunk.
So far everything comes back gang busters in the spring.