Raised the light a couple of nights ago, was thinking the same, thanks. I kept thinking it was a ph problem, the 1000k led needs to be wayyyyyyyyyy up there.
I know the leaves look dark, but not adding any N above what is in the mixes Advance Nutes MGB and now AN sensibloom. All fed way below the recs and focused on PPM more than 2ml per litre thang. The other side is dark green also, has had me concerned.