300 watt ufo

Hi, I currently have 12 plants 4x watermelon zkittlez x wedding cake auto 3x wedding cake x gelato auto, 3x purple lemonade auto & 2 blackberries auto. I am currently pulling out 850w from the socket using only various LEDs. I am currently using coco and feeding Advanced nutrients sensi grow and...

So my grow is about 35 days in. I've had some issues with finding the right height to hang my light. At first it was low and I had some bleaching so I raised them about 5 inches. But my growth has been really slow for the past week or so. I thought it was from the nutes at first but once I...