A freshwater diatom that measures 70x12 microns. The image is a stack of 13 photos. For some reason the bottom layer of scum in one of my pond cultures is riddled with diatom frustules.
Diatom ID
Diatom ID
Zeiss Photomicroscope III BF/DF/Pol/Ph/DIC/FL/Jamin-Lebedeff
Youtube channel
Youtube channel