Help me diagnose

Hello, my deficiency seems to escalate with everyday and I don't know what kind of deficiency this is. I grow in coco, i fed her about 3 days ago with 1k ppm, strain is laughing buddha and she's around 30 days in flower, it's progressing and I don't know what to do.

Any ideas? It's getting worse and I don't what to do, what to give her :/

Cal/Mag def. And about a pound.