We have not been able to see his "heart" (nucleus)
not allowing us differentiate it from other similar genres.
We find it in fresh water.
We film it with oblique polarized light.
A 40X objective
GH4 panasonic camera with and without zoom
The music belongs to the guitarist Victor Gomez
Video link:
https://www.youtube.com/watch?v=KcNIsge4-jg
Video frame ONLY for preview:
Regards
carlos
Nice video.