First time grower. Three clones of Sour Diesel in week five. The medium is Coast of Maine Stonington Blend it came recommended from local grow store. I was told I didn’t need any nutrients or amendments. I have been add recharge to every watering. But the growth is not there and a week into flow I started to notice the leaves on the top buds started to turn a reddish color. No clue what’s going on but assume there is a deficiency some where. Any advice would be appreciated.