10.22376/ijpbs.2019.10.1.p1-12 Volume 4 Issue 3 2013 (July - September) In this study the fresh water grown Blue-Green Algae ( lessThan i greaterThan Anabaena ambigua lessThan /i greaterThan ) is studied for its maximum growth. This Blue-Green Algae ( lessThan i greaterThan Anabaena ambigua lessThan /i greaterThan ) growth is studied in detail in three different media viz., Fog's media,BG-11, BBM, there was a significant change observed in growth of the species lessThan i greaterThan Anabaena ambigua lessThan /i greaterThan at different light intensities and different media, during 15-days growth. Growth was better in B.G.-11 media at 7000lux light intensity when compared to other media. Biochemical composition (Protein content, carbohydrate content) of the species  lessThan i greaterThan Anabaena ambigua lessThan /i greaterThan are estimated. Preliminary studies were done on various parameters like pH,Temperature,light intensity, and agitation on the growth of Blue-Green Algae ( lessThan i greaterThan Anabaena ambigua lessThan /i greaterThan ). M.B.VENKATARAMANA REDDY, S.S.LAKSHAMANA RAO AND C.S.RAO B.G-11 media, Anabaena ambigua, Light intensity, pH, Blue-Green Algae, Fog’s media 140-148