I have a question about my nutrients, I've been growing hydroponically for about 4 weeks now. Giving the plants the amount of nutrient stated for each week and up to week 4 everything looked good. But during the 4th week the plants started to yellow a bit. I assume this is from over fertilizing, but I was instructed to start flowering as my plants are 16-18in tall and they are in a confined space. I was just wondering if it sounds like a good idea to follow the instructions on the fertilizer? My last dosage of nutes were 14ml part b 14ml of part a Sensi Grow, this go around it says use 30ml/ea part for 11litre tubs which is what I'm using. I was just wondering because of my plants reaction to the lower volume if it was safe to go ahead and follow the directions since the plant will be using more nutes in flowering?