I have access to a lot of plants and fish through my gardening service. I am setting up a pond supply place (for contractors) and would like some advise on inexpensive ways to set things up. I have been using small pools but I don't have much space and round pools don't seem to make the best use of the space. I was thinking of dry stacking a long block trough and using pond liner. There are no other facilities in town that sell or grow wholesale so I can't even copy anyone.