Adding a Pond Can Be a Great Conversation Piece
If you want to place a water fall in that pond, it will be something that will add on more cost. However, you may be able to find a good deal if you check around enough. Placing in that fountain is something to think about.
Listening to the water as it cycles can be something that is very soothing. So what about those fish? If you know that you won't forget to feed them, than get them. It will make a great little bit of conversation for you and friends.
Even after the first visit, each time they come over they will look at the fish. If only to see if they have gotten bigger. So you don't need a huge area to place a small little pond or fountain into.
Look online for the many options that you have for this type of patio design. Building something around the pond to make it your focal point outside will work nicely too. Don't forget to buy some chairs to sit and enjoy watching the water and fish too!