Okay, so a couple questions:
What Day are you on? (since the seedling surfaced)
Seeds surfaced from planting on 12-12 to surface on 12-19 so almost exactly 30 days yesterday.
What is the temperature in the cabinet? 83 degrees
Do you have room to move the light up? it was hanging a little low install defect I put something behind so ot moves the light upba good amount so I feel more comfortable now.
It appears that you are not really even fully into pre flower yet...
So, off-hand I'm going to say no on the bloom nutes.
Whats considered full pre flower they wont need flower nutes to go pre flower?
As a large CFL, I don't think you're giving too much light.
Maybe too close but not too much. Put your hand at the highest
point of the plant and hold it there...if it isn't uncomfortably hot
then you aren't too close eithei tried this doesnt feel to hot..
Thanks!!!!
As to the Scrog techniques, I haven't done one...sorry brother.