After a difficult winter, I didn't get my leaves up before a lot of them ended up in the pond. More than usual, this spring I have my 21 year old son home doing college on zoom to help. Any ideas on how to keep debris out next winter? I have some gold fish and a lot of lillies. I worry about my dogs falling in on a cover and getting tangled up and drowning. The Doberman has fallen through the ice following my small dog on to the surface.