Hello.
I recently examined a piece of the Ulva intestinalis algae under a microscope with many diatoms on the surface. Among the algae a rotifer is located.
(image) https://mega.nz/file/MeYTCDIB#B0nTQMJEb ... 2W38Xa7Z6w
(image) https://mega.nz/file/YXo2EKzJ#kpseC2J5G ... CpHXkbEC2A
(video) https://mega.nz/file/9DZUwLBZ#AoPkKuYhq ... 4U_ausLX9Y