hps bulbs and leds will hide the true color making difficult to unable to give feedback on situation best to use a regular house light. also we will need more info like whats your ph and runoff ph. ( take equal parts water and soil mix and test ph) what are your ppms and runoff ppms.( use non nutriented water and water until you get run off be sure to collect in clean bowl/cup so u dont contaminate and get false reading, and take ppm test). what kind of medium are you using what kind of nuits. tempurature, humidity, age and past symptoms of plant ( good health, had a deficiancy before, had bugs before).