Re:constructed wetland for Aquaculture wastewater

     >Q:  What plants might do well in this wastewater, media and/or 
     >treatment objective?
     Water hyacinth (Eichornia crassipes) is often used because it is 
     extremely fast growing and can remove a lot of N and P.  It is a 
     free-floating plant, so you would need a foot or so of water depth for 
     it to float properly.
     However, water hyacinth is illegal to possess in most of the southern 
     states, because it can grow quickly and clog waterways and intakes.  
     Texas allows the use of water hyacinth as a wastewater treatment, but 
     you must have the proper permits and site design to prevent it from 
     escaping into the wild.