Hello friend, i see from your grow diary that you use Advanced Nutrients. Like i do. I start with flowering nutrients from moment when switch light to 12/12 - Sensi Bloom AB. If you have Bud Ignitor start with that + Sensi Bloom AB...I use strait Bloom formula without restricting N or something else. Advanced Nutrient is great company, just do what say and look for strength, usually is to strong for my plants at full recommended 4ml/l. Doing so i newer have nutrient issues from first day using Advanced Nutrients