Well over the past few days I finally recieved my 2700k envirolite (even if they did screw-up and send the 125w insyead of the 200w i ordered

) so I set about changing over to 12/12 cos I'm fed up getting ripped off buying over-priced-under-dried-shit!
The lights went from 24/0 to 20/4 for one night, then the light was changed to 125w 2700k envirolite and ran 20/4 again, the next day 16/8 and then finally the 12/12.
They've really taken off! I water them 1 litre of PH adjusted (6.8) water with no nutrients every 2-3 days (when soil is dry and they start to droop) Ive had to adjust the lights twice already.
My main concern is that I still only have one female showing sex

shouldnt the others have shown by now?
Also the temperature at night when the lights are off drops as low as 15.9C, is this to low?
ANY ADVICE PLEASE ON WHAT NUTES TO USE NOW I'M FLOWERING??? BUDBOOST MAYBE???
Here's the pics
As always ANY advice/comments welcomed and appreciated
Pic1 - Too tall for 125w envirolite to flower? I'm looking into getting another or a 75w hps to stick in with them?
Pic2 - My Successfully FIM'd plant
Pic3 - My Successful LST'd Plant
Pic4 - More Pistels Are Comming Through on Claudia
Pic5 - What is this thing? There is only 1 of them and it looks really weird. its bigger today than yesterday too. any help?