Trying to catch a parasitized fish with my bare hands

When I saw that he got very close to me and that he was parasitized, I thought that he would be slower than normal but even so I didn't even touch him, hehe. No way.
These parasites are sea lice, a crustacean that sticks to fish's body and feeds on his flesh.
This time I was snorkeling with a friend of mine that appears at the end of the video.