WOW, your plants look more then great for only 21 days. Your Papaya has some pretty big secondary growth for this stage, you must be doing something right :thumbsup: . Keep up the good work . You know Papaya is known for needing only 20 days of veg before flowering :dance: , How much longer are you planning to keep them in the Veg cycle. If Height is not a problem, you can let them for for a total of 5 weeks and flower them with that 400w HPS you got. Their full potential can easyly be reached by they way they look now. Keep EM Green Weed4Life :thumbsup: , grow them to the max. Maybe you can do that double main cola thing you do with one of each strains ...