Ive got issues with nutes

Ive got two ladies Im flowering. small clones from a new mother. I placed them in my new cab as a test run. I initially had some light leaking issues and an mg deficiency early on. All issues handled, My leaves are curling up on me, losing color in grey blotches, Ive flushed tonight and fed half strength complete fertilizer. They are in the 4th week of flowering and looking good otherwise. Any advice will be greatly appreciated. I need to help these girls are on their way but have had a rocky start

i would cut off the leaves that arent looking so good first so more energy would go to the fruit

Dude, if you flushed and are now clean....Make sure temps, ph and humidity are in order. Feed bloom nutes at no more than 1/2 strength. Add some cal-mag into the mix at 1/2 strength and watch um grow

Thanks dude.... That diagram is the most helpful info Ive got from anyone and any book as far as the correlation between ph and nutrient uptake. once again thanks a million