It is diatamacius earth. Or however you spell it.What is the white chalky stuff around that one plant?
Being 3rd week they seem little small but also gotta remember that not all strains grow the same some have longer times than others so this could be totally normal my autoflower that has 13 weeks at week 3 for myself this is what it looked like for myself
These where different strains all at week 3 day 15-17Being 3rd week they seem little small but also gotta remember that not all strains grow the same some have longer times than others so this could be totally normal my autoflower that has 13 weeks at week 3 for myself this is what it looked like for myself