Mid to late flowering ?'s

I'm nearing the end of my 2nd grow, 1st was 5 auto-ak's that gave me about 20 grams each.
Grown under a 250watt hid with plenty of cfl's to supplement it in a dwc hydro setup.

This time around i'm growing a blueberry and a white widow.

I've noticed about 1 month or so away from harvest the leaves on my plants begin to curl under no matter wut ph or nute strength i give them. Is this normal or is there something i'm missing?

Also the leaves begin to turn yellow, (mainly on the bottom but thats norm?) and slowly progresses to the top of the plant by harvest.

Any tips or advice?

Heres a few pics of the laides

No comments? darn.

Anyone else have similar probs?

i think they look great, your going to have some yellowing at the end of flower. im getting it right now myself. as for the leaves turning down im getting that too but not sure what causes it. how long did you veg those. they look pretty massive.

I don't kno the exact number of days.... Aprx. 6-7 weeks, i can't really come up with an exact number because both the plants where nearly killed by a rat. i guess it tied to dig up any seed or w/e but succeeded in de-rooting the white widow and pulling up the bluberry.... amazingly both fully recovered and appear to have no ill side effects