Rookie grow Help (burmese X super skunk) 6 days flowering

What's up everybody,

My buddy and I are growing some burmese skunk, its our first grow and so far so good. The 7 plants broke ground on 4/20 :stoned: , and right now we're 6 days into flowering. We posted some pictures hoping that someone could verify that the first one is female and the second male. The third pic is a picture of one of the tallest plants, but we're almost sure its male(pic 2). We ended up with three females, two are 28" and one is 24". The tallest are 2 inches shorter but bushier than pic 3.

I just had some general questions, any help would be appreciated, thanks alot.

Knowing the height of those plants right now, and by the picture, does anyone know about how tall they will be at cutting time? We have about another foot of growing room so we'll put a fence over them to spread them out rather than up if they stretch too much. And any ideas on the weight of final product with three plants this size? The plants were under a 400mh until flowering, suspected males have been removed, and 3 females have been under a 400hps for almost a week and will continue to be.

We're also trying to build a carbon scrubber on a vertivle fan, does anyone know any links to designs for that? If not, any links to a design for a circular fan would be a huge help.

And finally, We grew in miracle grow soil so we'd like to add some ferts to plump up the buds. I think that would be phosphorus and potassium, let me know if im wrong. When should I start feeding them and how much should i give them?

Thanks alot to anyone with any feedback. We've only gotten this far with the help from these message boards.

-Happy tokin'

One last thing I forgot in the last post. Does anyone know if male plants produce a significant amount of resin on leaves and stems to possibly be used to bubble hash? If they do, we'll probably move them outside somewhere just to see what happens.

Thanks again!

not sure about the first picture...but the second one is totally a male. kill that fucker!

oh...and tell your boy in that picture to get some new pants.