We have finally made it this far but are wondering why the flowering process is taking longer than we've been told that it should. When we first started flowering we did not have co2 but about 3 weeks in we started the co2. We have a microscope to check things out up close and still no amber on the tricombs, mainly milky white with a few clear tips. What might be my problem and is there something I should be worried about? I believe the strain is White Widow. Started with a 400 watt for first 3 weeks then bumped it up to a 600.