Microcystis

Microcystis:Is a freshwater green blue algae cyanobacteria. They are usually found in groups and posses gas filled vesicles. The groups are bound together by thick mucus like substance of many sugars. Things like xylose ,glucose, fructose,galactose to name just a few . They appear brown on a compound light microscope due to the gas they are filled with. They consume massive amounts of nitrogen and phosphorus and it's ability to keep buoyant is part of what makes them so successful at out competing phytoplankton. Microcystis is a neurotoxin which kills brain cells. The walls of the bacteria when stained is gram positive however the cells themselves appear as gram negative. They thrive in nutrient rich water that is low in salinity .
*This is a much better view than just seeing it on the mosquito post a few weeks ago I felt it would be beneficial to get it by itself.
40x objective neutral red stain