how long should roots be before i start to put into flower.

Right now I have a POGK clone in a 5 gal DWC bubble bucket with 3 airstones, ph=5.8, water temp=68 degrees F, humidity between 45-55%. I have had this clone for about 3 weeks. I got it from a med shop and believe its maybe about 2-3 weeks old when I got it. The roots have been slowly but steadily growing until root explosion a few days ago. I have very long roots that are touching the airstones and brushing the bottom of the bucket. Should I put into bloom now or risk stunting her growth and waiting a few more weeks to veg?Please any advice is helpful. I'm not 100% familiar with growing this strain so any info on the strain is much appreciated.
 
Top