Since esshup let me know that shiners don't spawn on brush, I ordered some spawning mats to put out. I actually had shiners nipping at a Rooster Tail yesterday so there are shiners surviving in the pond. I took the net down to chase any bass out and put it back up. Hopefully that takes care of the problem with the enclosure. Now I need to get some more shiners to put in the enclosure since the shiners probably left for the main pond too.