Hey, everyone. This is my first time using the red solo plastic cups for sprouting. On previous attempts I've had them sprout in larger containers so I didn't need to transplant very quickly. I have 6 bag seed sprouts going right now while I wait for some ordered seeds. They are about 3 days old under a 400watt HPS and putting out their second set of true leaves. The cups are 18oz and around 6 inches tall. I want to transplant before they get rootbound, but I'd like to keep them how they are now for as long as I can before becoming rootbound, because I have them in a verynice setup where they are getting almost all of the light reflected on them that I won't really be able to use once they are in bigger containers due to space issues. How long do I have? I was thinking 1 to 2 weeks, but 2 weeks might be pushing it. Again, I want to utilize my set up as long as possible, but avoiding them becoming rootbound is more important because I don't want to stunt their growth. How long do you guys recommend I wait before transplanting to bigger pots? 7 days old? 10 days old? or could they go a full two weeks? Let me know. Thanks. edit: you could also recommend to me by what node the plants should be on before transplanting. that would help too. either way.