Should I add rock, soil(mud) in my pond?
I want to put soil in my pond so I want to grow plants inside the pond
instead of put them in a pot.
I want to put rocks in my pond so I can create some landscape in the
pond and the fish will have more fun.
But from the books I read, the Post in NG, none of them mention put
soil,rock inside the pond. why is that?

Please advice.
thanks in advance.
John