Thanks Rod, Hobbyst & 75R!
Both are hot candidates, I researched a bit and found that Euastrum denticulatum shall have spikes at each end, but these are missing one my photo.
Also there are others looking quite similiar, for example So Euastrum binale (TURP.) (
https://www.moor-impressionen.at/galeri ... 001611.htm). Really difficult to distinguish.
For the second one Euastrum ansatum looks really very similiar, maybe this guy looks a bit wider then the one I captured? But I also did not found a thinner one
Hobbyst46 wrote:How did you "clear" the algae and exposed the skeleton?
To be honest this was nothing I prepared, the water sample already contained the skeleton
![Smile :-)](./images/smilies/icon_e_smile.gif)