2nd round - started 12-25-19

Mid last week my plant began to yellow. My initial diagnosis was nitrogen deficiencies. I flushed on Thursday and started over with fresh nutes hoping whatever was wrong would be fixed (maybe I fucked out the ratio or something). Day by day the yellowing continues to worsen. Upon reading and consulting with friends it appears it is light burn. I have 2 x130 watt mars-hydro sp150s running over 6-8 sqft. also had the lights low - about 6-8" of the canopy. I was measuring LUX with my LUX meter and hitting around 50-66k lux which many sites suggest. But it looks like this is just way too much given the reduction of metabolism during late-phase flowering. At least that's my current hypothesis. So - I have raised the lights to 18" and reduced to just one light. Mars Hydro suggests 12-18" above the canopy - I should've gone with that recommendation. I might be over reducing at this point but I am desperate the leaf death hasn't gone to far. This is my last fix - hope this one works. I hope the plant recovers with 3-4 weeks of flowering to go. We shall see.