Master kush/ time to move OD?

Hello all, I have 5 MK under 75wfl lights all 1 week old and about 6" tall.
a couple of them are getting tall and spindly and about to fall over. Are they too young to transplant into bigger containers and begin to harden so I can move them outdoors?

6" after 1 week? That seems like a stretch for MK. They are normally slow growers. But yes 6" you can start to harden them. mine where 4 weeks and 8" but topped. Befor I started and after 1 week there 14". But now is the time to get them out. They are long flower outdoors. Late October harvest.

Just read a thread about that. Your light source is probably too far away causing them to stretch. put your lights closer and get them to thicken their stems before going outside. Im growing indoor only but it sounds like you couldnt even put a fan on them yet. Best of luck to you. I have a Master Kush flowering right now and its gorgeous!!

bend the stem back and forth itll make it stronger in this early strage. my fucking master kush has been in rockwool for 4 day and hasnt even popped! pissed..is it nirvana?

Yeah nirvana 100% germed and sprouted.thanks everyone for the info