My Girlz - First Grow

End of Week 4: More growth this week. Leaves are green and healthy. Noticed a few gnats in the tent, so wiped everything down with hydrogen peroxide. Added a small Eva Dry Dehumidifier to the tent this week. Fed nutrients on Monday (5 days ago) and watered yesterday (Friday) - using ~ 1/4 tsp of white vinegar to pH down the filtered water (also had some left over nutes & a bit of sea kelp water remnants in the pump). Watered at 6.34 pH with only a little run off. Overall, the young ladies Are looking good. Side note: noticed white hairs on Free Bird (free seeds from Seed Supreme) - could this be an auto flower or just showing sex early?