Using 1000w MHdo you have the whole plant pic, do you use led?
That is wired looking. I don't know what it is, but I don't think it's any kind of deficiency. I don't know.Here's the plant
I'm thinking the light is too close. I checked and it was way to hot. Hopefully it works out, raised it up 8in. Thanks folks..That looks like light burn to me. How close is your light?