BlackBerry Kush Autoflower Dutch Passion Cal Mag deficiency???? help!!!🥲😑🙈

I grow community I have a auto flower by Dutch Passion and I was wondering if it's a Cal Mag deficiency that I am experiencing. I recently added Cal Mag to it today November 19th. The Auto flowers are on their 19th day please help if anybody can I was wondering if anybody has had this deficiency With this auto flower BlackBerry Kush Auto by Dutch Passion. Pictures are below of what I am using. If any other information needed from me please ask I am open to any advice. Really scared that the plant might stay short for the rest of the grow I mean it is an autoflower so 🤷🏾‍♂️🤦🏿‍♂️ much appreciated 🙏🏿. Also using a super soil for feeding at the bottom of the air pot mixed with ocean forest.

Thanks Happy Growing