healthy growing seedling, being fed, yellowing starting to go up plant

[DR.Purple]

i have a healthy bubblegum seedling and as it was growing it started eating its cotyldon leafs those first seed burst open leafs so started feeding, got that growth burst and now its still growing but the very 1st 2 marijuana leafs are starting to yellow, do you think i should start feeding more ? or could it be pot bound ? i cant get pics yet i can get if i have to for help as they will be in the start of my grow journal when i start it. roots are comeing out the bottom of the pot and i still have it under a CFL and i put her in the window during the day when the suns out, the pots got holes all round it so the soil should have access to plenty oxygen.
so if anyone has an idea of what to do or it might be before i can get pics up i would extremely appreciate it.
thanks again guys, stay safe
DR.P.

 

[Gucci]

Well you should add a little bit more facts about the environment,soil and how old the plants are. Also when the roots are coming out of the pot its definitely time to replant. Probably deficiency but it also could be from bad ph.

 

[DR.Purple]

its just a seedling at 4th node i think, ive fed it again and stuck an extra CFL to the side to help the branches come out, im useing her as a mother so im topping her at around 5th node and then hopefully get some good cuttings from her, cant wait to see how she turns out along with the others on my grow diary.

 

[Sat X RB]

the 'cotyledon leaves' normally brown and die. the first set of real leaves may do also.

but yr plant sounds real young and shouldn't need too much feed at present.

that you have roots coming from the bottom of the pot implies yr plant is growing strongly ...

but as said above, more info on yr set up and pics would help further analysis a lot.

cheers!