Hi everyone cheers for reading my post. I’m growing blackberry kush autos from fastbuds in bio bizz all mix in 3 gallon fabric pots. Using their grow, bloom and recently added top max into feeds plus plant magic magne cal mixed into tap water aerated for a day or so. Running two cheap 200 watt led’s so 400 watts in total from the wall. I know this plant has nitrogen toxicity but I’m unsure what this yellow blotch is? she is looking like she will yield the most so really don’t want to screw anything up!