hps light, not sure of wattage. Using bada bing, bada bang, bada, bloom and carbo blast. Growing in cubes. plants just started turning yellow and wilting about a week ago. Flushed for 2 days before adding nutrients again, Added nutrients back in 2 days ago..... seems worse after adding nutrients back. And sorry if this is a repost, i tryed using the search and troubleshooting tips but i cant figure this out. Thanks.