<Ul> <Li> Denitrifying bacteria </Li> <Li> Leptospira </Li> <Li> Purple bacteria (both sulfur and non-sulfur) </Li> </Ul> <Li> Purple bacteria (both sulfur and non-sulfur) </Li> <Ul> <Li> Lepisosteidae (gar). </Li> <Li> Northern snakehead fish </Li> <Li> Pygmy gourami...</Li> <Li> Spotted barb </Li> <Li> Walking catfish </Li> <Li> Asian swamp eel </Li> </Ul> <Li> Lepisosteidae (gar). </Li>

Health hazard caused due to open drains and stagnant water