What sort of ideas are you looking for? What do you already know about koi ponds? If you are going to use actual koi fish make sure it’s protected from freezing and cats! When the fish get large they are much easier for the cats to catch and eat.
How you design and install your pond will depend upon many variables including the region in which you live, the size of the pond you desire, foliage, etc. A waterfall is a great addition and a skimmer is essential. Will you install it yourself or hir
e a landscape contractor? If hiring a contractor, get one experienced with ponds. There is a guy in suburban Chicago, Gary Wittstock, who is purported to be the! expert on ponds, pond construction and pond equipment. He has a company called Pond