a week ago i got a green bubble tip nem for my tank and i have just cone back after a couple days and saw a white patch on the side of my clown, it isn’t spots but could this be where the clown has touched the nem because i know they need to get used to it and it has been hovering above it. I am new to the hobby so dont know about fish illnesses. Any help would be great. You can see a video of it below as well as a picture.