hey bro how are you doing ? you had gave me some much needed advice last time we spoke but im flowering now an have been for about 4 1/2 weeks but i have a few questions when do i stop purning these babys an i started from bag seed mostly all have started buding excepet i have one that has even shown sex yet but from the looks of it its a female but dont know could this be a sativa plan i mean its completely healthy just dont know what it is ....... also what color does hps light give off although this might seem like a dumb question ive never grown before now an its been said that my hydro shop has been cheating people . ive got yellow spotting on some of my plants y? an how do i correct this oh im using an areoflo 30 only 15 were female which was half of what i planted. an with even great lucky i got a twin female amazing i heard from bag seed im not sure of this also what will my yeild be like using 1600 watts on 15 plants thanks a lot for your time an advice kudos