They still look pretty green I'd let them go another few weeks probably. It also depends how you want it to smoke though if you want a heady high then take it a little sooner but if you want a stoney high let it go for awhile longer. Not sure if you have a thrichome microscope but if you do then look for the heads to be mostly cloudy at least and some amber if you're looking for the stoney high
tnx for the replay i m day 90 now or smthing i started them 6 01 2013 ,and yes i have a microscope fore the trics they are all clody i thinck but i cant see none amber maybe is cous of led ?of th mic?