Yup they are but can you tell what defec it is for my future knowlege I find it hard to fig even looking at the keaf charts etc ill googke mh mag def and pics will look just like thisThe good news is, those looks to be the older leaves. It seems like your new leaves are doing fine so I wouldn't worry about those old leaves and let them just die out. That's just what I would do. I can't speak for the other members.