Day 6
After seeing the stems yesterday, I dropped my 600W MH down to 16" from the top of the plants and lit them up. I have it on a 18/6 schedule and the difference today was remarkable. The leaves have started to fill out, they are about 3 times the size they were yesterday! I haven't taken pics today but will tomorrow. I am listening to you Nartac, (you are a great mentor

) My second BlackJack seems to have been stillborn but I still have 3 seeds so I will set up a Rapid Rooter for Saturday AM, (we are expecting snow Friday AM so I may have to get up an hour earlier to snow blow the driveway so I can get to work.) We are keeping close watch on the plants to help them transition from RR to solo cups. My temp in the tent is hovering at 80F, which means that the fans are set to the correct speeds, Yeah! and the humidity stays at around 32%, not optimal but better then at the 20% I expected.
Glad to hear it worked for you also Syncro!!You can even let them 24/0 for a whole week if you wish,you will see the difference after each lights off cycle ends,they feed in the light and grow in the dark,therefore gathering light for 24/7 a total of 7 days will kickass in growth when the first dark period ends
By all means i am no mentor,i am on my first grow,merely started my flowering period yesterday and counting a long list of terrible mistakes
I know they adore light and grow in dark!Also you will notice the smell will be intense the last hours of darkness each day and will eradicate when the lights turn on!This is all information open to everyone obsessed enough to go looking for it lol!
Have you thought about moving the RR to the pots right away to avoid mid-veg stress? They will go faster,deep,stronger,taller,denser if you give them an easier time as kids,they don't like moving around all that much,they get attached

Keep solo cups for experiments,rooting,clones and toy seeds
Temps are beautiful for seedlings/veg plants,75-78 would be DREAMland depending on your RH always!!Don't go settling with 30-35% in 80F you will dry your plants out easier,not harm them,just dry out easier~ same thing the other way,don't settle with 50%+ RH when you have 72F they will want to get rid of all that water and curl/cup on you! there is a panel that i found searching google for
rh temp cannabis in
images section

has a couple in there that help!!Still,i would not STRESS over rh and humidity so much unless plants start nagging about it,my curly leaves have done nothing bad besides unsexy my plants looks!!
Note that 16" is the far end of 600w HID bubls and you MIGHT have issues after 2-3 nodes form!!You don't want THAT much tightness in the node spacing,i am having trouble with a 3node seedling 2,5" tall :S can't do anything with it!!just spread the nodes by putting a collar around each node and squeezing so the branches open a cross form...Check daily the light distance from your highest tops and keep it 16" you will do great!!