Super Lemon Haze - Just Feminized Seeds

It's the start of the third proper week of flowering and I really need these lovely babes to stop growing quite so much, they're currently about 3'6" from the top of their pots and growing about another 2 inches a day, if I'm not careful I soon won't be able to raise my lights any higher. Still seeming very healthy, although I am noticing a lot of the lower branches are snapping off just when I move against them when watering them, it doesn't seem to be affecting their overall health, and I'm assuming it's just down to lack of light on the lower foliage. I'm also seeing the bud sites develop nicely. Am stopping with adding Canna PK 13/14 and Canna Boost this week as all my research seems to indicate that it's only really beneficial in the first few weeks of flowering. Adding a dehumidifier at the end of last week is bringing the overall average humidity down slowly, but am still concerned it might not be enough to prevent the potential of bud rot, but only time will tell.