Last hurdle

Hey so its a good few weeks on and im now nearly 5 weeks into flower and i think im on track all ya'll advise has been 2nd to none thanks 4 all the help ,Now lastly whats your tips on getting solid heavy buds, are they looking ok for 5 weeks and how long you think till harvest ( ak48, blue widow, blueberry, blueberry gum), once again your tips and guidance are essential for first time growers. oh yh is there any truth that ya buds swell up the most in the last two weeks of flower?
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Wow... +rep those are looking fucking fantastic. What is your setup and also my plant is around the same week in flowering a little yonger and like yours your leaves are still pretty green atleast to me from the pictures they'll start yellowing off and dying. You probaly have 2-3 weeks like myself. Looking great though man.

Wow thanx man, i been using 2x 600w hps and canna flores, biobizz bloom and biobizz heaven thats it really apart from ph up when mixing, leaves are starting to turn yellow near the bottom though, been told this is normal though?