Ok a couple things happened all at once so not sure what might have happened if anything. Plants were all doing good under 1000w metal halide. Was watering every couple days every other water 1/2 nutes of fox farm grow big. Plants are in fox farm ocean. So about 4 days ago I gave a first full strength feeding and then about 2 days ago I gave straight water everything was looking good. I ph the water after adding in nutes and its always between 6.0 to 7.0 generally around 6.5. Plants are between 4 to 6 weeks old for the most part. I switched to 1600watts worth of hps last night as well as 12/12. Sometime during the night or today popped a breaker I'm guessing this morning when the lights kicked on. No ventilation or light for at worst around 24 hours roughly. Almost all the new growth is pretty dang yellow looking now. I mean the new new growth. Everything has kept growing but its all yellowing from the base of the leaves and from the very inside to out. The leaves are not dropping or anything like that but its across all plants and different strains the very newest growth looks pretty yellow. I'm hoping it was a lack of co2 from no ventilation for 24 hours in a pretty cramped room thats causing the yellow? They didn't show any signs of yellow after the full nute feeding a week only till today when they were without light and ventilation for better part of a 24 hours. What do you think?