I have had creek chubs successfully spawn in an artificial stream I built. I used koi/goldfish pond liner and dug out a trough. I lined the trough with the pond liner. The trough basically made an artificial stream bed. The stream ran into a lined pond. I made the trough deeper in some spots and shallow in other areas to form riffles and pools. I used a pretty powerful pump to get a good "stream flow" from the pond up to the beginning of the stream and so on. I was able to get several different species of fish to spawn in that creek. It was very educational.
Nice! We have to get you to Nebraska sometime and do this. Bigger scale though!
