I somewhen managed to photograph this rotifer in the moment of cathing its victim. Unfortunately the quality of the image isn't so good because of relatively low shutter speed ( 1/80 s) and high level of noise (800 ISO).
It is a pity I had not any flash
Polarized light with retarders
Lumipan - an old CZJ microscope
20 X Splan Apo Oly.
2,5 X NFK
I like it. Indeed, the chloroplasts (?) that appear to be ripped out of the protists body reinforces the mood that this is a life and death struggle. In this case, the slow shutter speed may have been beneficial to give the photo greater realism.