I'm not sure what my humidity is but I would almost guarantee that it is low. My 400 watt light should arrive today so I want to wait and see how that affects things in my cabinet. I was thinking that this looked like some sort of deficiency but my ph was a little high too so I am hoping that with the correct ph the issues should resolve themselves but I'm still not sure.
That is nice. I wish i could make room for something like that but right now it isnt an option. I will hopefully be moving this summer and plan on having a dedicated grow room. My light didn't get here yesterday but when it does I will use the mh to finish out the last week or 2 of veg then switch to hps for flower.