I am using 5 florescent T5 24" lights, humidity is around 55-65%, and temp is between 27C-30C.I am feeding them rain water mixed with Earth Juice (2TBSP Grow, 1TSP Bloom, 1TSP Catalyst) I feed them that every other feeding. I use rain water because water at my house is poison. Only 2 out of 10 plants have this. All are using same soil mixtures, and have same conditions.