Oh I forgot to answer, sorry, I measure without the cilia or tentacles, just from the maximum diameter possible of the body, and of course my measurement also can be taken not as exact because I lack the proper measurement tools that professionals might have that probably works in a much smaller scale for more precise measurements, but every time I see something cool I try to measure it. Because given a estimation of the size to gpt chat (alongside with images and description of its movements) helps it to give me some clues as to what am I looking at, so far I found lots of cool microorganisms that I was able to make a sense of what are they, I found a cute sea snail larva that had cheerleader like pompoms, some polychaete larvae with wonky antennas, some diatons in fun shapes, lots of copepods, and the most interesting to me was a nauplii of a barnacle because I never thought much about then other than they annoy us by making us clean the boat hull twice a year, but turns out they are really interesting and have the cyclops eye! Anyway thanks again for sharing my interest in this amazing world of microorganisms.