Hi there!
Now that they started to flower you want to give them as little stress as possible to help them make good flowers. defoliatiom is okay as long as you dont take too much.
When the stretch is over at arpund week two or threw then is the time to switch to bloom nutes!
Liquid seaweed is good flowering booster!
Hey man, they look good, growing strong! If they are growing up they are headed in the right direction yeah! *lol* keep it up all the experience you gain from this grow will make your next twice as good! Happy growing man!