Hello folks! Wondering to find out how we create a hemi marsh or shallow marsh with diverse plant life in a challenging urban environment where there's a history of industrial pollution, habitat fragmentation and waste into local rivers and areas of water. I'd like to draw many types of birds, insects, amphibians and other creatures into our urban wetlands without non native rats and other non native creatures. Please let me know if there are any examples of a rich and diverse wetland habitat in an urban area. Thanks!