Hello,
More on ???? ??????.
From Animal Diversity Web:
“Anisakis simplex juveniles range in size from less than 5 mm as second stage juveniles to more than 30 mm in their fourth stage. (Barnes, 1987; Brusca and Brusca, 2003; Roberts and Janovy, 2000; Smith, 1983)”.
I believe approximately .04mm is considered ???? ??????.
Even according to smaller estimates, it is longer than Milvan, (which we know is visible) but narrower. An additional factor to consider is that according to some reports, they are swallowed when they are free-swimming. Their movement makes them more ???? ??????.