Do I need to keep open water in the winter? When there are fish, my family used to like to go I e fishing.

Also, aren’t the diffusers supposed to sit on the bottom of the pond? Or do I want them at different levels? We have muck build up on the bottom and lots of water meal and duck weed on the top.

Lastly, we love to go on paddle boat rides to see the fish. If we put pond dye in the pond, would we still be able to see them?