So based on this paragraph from the Greenleaf site, I will increase my feed and see how it goes.
The Feeding Calculator is used as a general starting point for finding the right amount of nutrients to use. Depending on your setup, you may benefit from using more, or less than the suggestion. A good idea is to keep a close eye on your plants with visual inspection:
1: If the plant is responding very healthy, with good color leaves and growth, then the dosage is fine.
2: If the plant is more pale green color, with lower growth, you could consider increasing the dosage.
3: If the plant is overly dark green, or showing signs of tip burn or tips turned downwards, you can consider to lowering the dose.