I noticed some spots on my plant this morning so I was reading up on what it might be. I'm thinking it could be a calmag deficiency but just wanted another opinion. It's indoors in soil going on week 5 of flowering. I water about 2-3x a week feed-feed-water. I'm using Aurora innovation nutes and calmag at about 75% recommended amount. My other two plants are looking good and I'm feeding them all the same. Should I just up the calmag for this lady or is it something else?