The growth and use of microorganisms to treat waste water is a cheap and affordable method to treat waste water plant. This method can be efficiently maximized by the choice of microorganisms that have the ability to decontaminate water; hence it can be done by photosynthetic bacteria such as Rhodobacter. The Rhodobacter species was grown using corn waste water which is mostly seen as waste in this post covid-19 era. The isolates were gotten from Ubahudara stream and Ugutah Lake of Anambra and Imo state of Nigeria. The organisms were incubated at room temperature, and pH of 6.8, using tungsten lamp (150watts) for constant illumination at a distance of 50cm for 5 to 10days under an anaerobic condition. The result showed a visual sign of growth by turbidity and pigmentation. The test for motility showed that the organisms were motile. The Gram reaction test showed that they are Gram negative. Characterization showed that the organism utilizes glucose, lactate, fructose, citrate, malate, succinate, acetate and propionate and then left formate, benzoate and ethanol unutilized. The Rhodobacter species nitrogen production which occurred within four days interval was used to determine the growth of the organism on corn waste water as carbon source, therefore it showed the percentage of its nitrogen production as follows, 0.462%, 0.802%, 0.882%, 1.096% and 1.106% on the 1st, 5th, 9th, 13th and 17th day respectively.This showed that Rhodobacter species uses corn waste water as its carbon source thus decontamination of water in this Covid-19 era of economic hyper-inflation. Keywords: Rhodobacter species, waste water treatment, Photosynthetic bacteria, Post covid-19 era, Corn waste water.