The PondFather
The PondFather with my Grandson enjoying my pond
There are as many ways to design and install a pond as there are types of fish you can buy for your pond. I've personally owned a rock and gravel lined pond since 1990 when we converted our cracked concrete pond to a liner pond with rocks and gravel. Wow. were we every pleased with the reduced maintenance never mind the beauty that was possible. Here's a "chapter' from a reference book I've used for anyone wanting to find out more about how to use rocks and gravel. It describes what kind of rock, how much to use and how to place the rock for best results.
http://issuu.com/aquascapeinc./docs/chapter_11_-_rocks_and_gravel
http://issuu.com/aquascapeinc./docs/chapter_11_-_rocks_and_gravel