marks

Hi everyone!! I recently got my betta out of his old tank into a brand new and bigger one! The thing is, with the new bright light that i have, i noticed some marks on him and i am wondering if he is sick! I placed a few photos as attachments, in there you can see his new tanks and the marks...

I have just recently started taking care of a Betta for a friend who was moving (I think it is a female betta based on the pictures I've seen). I know next to nothing of taking care of fish and was just trying to help out. After spending some time looking through here (which, unfortunately was...