Seedlings O The Purple Stem

Hey everyone this is attempt two @cfl ..my previous babies didnt make the trip to the promised land ...anyway im on day 3 and i germ'd the little ones using the paper towel method.

DAY 1
I left them in the paper towel untill they were tall enuff to be out of the dirt (i know ..too long) anyway i put them in jiffy peat pellets. Can see 1 set of bladed leaves. Then i placed them in a "Humid Dome" under 24/0 with 2 23w 2700 cfl..

Day 2
Plants are getting some green to em(were yellowish)
The stems look light purplish..I placed them outside for a few hours with the top off. After being outside they
seemed to have reached top of "dome"
The top is removed and i place them under the light.

Day3
The plants have really opened up over night..hoewever the stems are dark purple and they look like they are stretching but due to the length of seedlings at implant..really they are about the same height ..the stems are just str8ter and more rigid.. i watered them a little pellets lookd a tad dry and placed outside a few hours.

okay pics are attached tell me how they look...pointers...and info needed..

Why the purple stems ..?is it because they were so tall @ planting{DAY 1} and they are adjusting growth to the actual light source now?

Also i constructed a small and i stress small "start box" which i am going to place the seedlings in for a more consistant light/heat cyle pics attached..you can see the lights i have been using mounted at top with a pc fan for airflow..

color is fine might wanna transplant em into bigger pot and keep light closer and dont need dome anymore they look good gl

thanks ...im transplant in a few days i want them a little stronger ...when/what shuld i start to feed? looking to get something at like the depot or wally world.

yeh looks pretty norm to me matey. most seedlings start off like that.

u can bury them alittle higher if u think that are a touch lanky but they look ok to me.

+rep bro u doing good hit it up