First Organic cannabis Grow!!

First cannabis issues I've ever had to deal with happened this week! I'm glad I know how to fix what's wrong and definitely let me know if you guys are noticing something I'm not. One plant is starting to show cal deficiency and I talked with a buddy who does organics and said it happens when first starting the bed so I'm looking to do a foliar spray of organic calcium through coconut water and aloe gel. Also a bit of over watering caused big chungus to have some issues but they settled out as the soil dried up. Still looking good excited to keep you updated!