I use Superthrive about every two weeks until the last month of flower. I use one drop per quart of water. Make sure to check the ph of the water AFTER you add the Superthrive as it will certainly throw it off. It's good stuff if you have any probs with a micro nutrient deficiency. Also helps in cat trauma and other stresses.
scott9116 Reviewed by scott9116 on . Using Superthrive. Can you use superthrive during veg and bloom? Rating: 5