I also am kicking around some ideas on making a micro pond within my pond. I don't have a good spot for a forage pond but was thinking of creating a semi-permanent netted off area for growing forage within my pond. I need to figure out how to keep fish from going over or under the boundaries while at the same time letting pond nutrients and the tiniest part of the food chain make it in to the netted off area. I can then hopefully grow forage and remove from this area as needed.