Ipomoea aquatica Forsk. has been shown to possess abilities to remove several metals such as Cd and Cr as well as nutrients like N and P from wastewater and reduce biological oxygen demand (BOD), chemical oxygen demand (COD), total suspended solids (TSS) and chlorophyll ‘a’ (Hu et al., 2008;Wang et al., 2008; Chen et al., 2010).