I recently transplanted these plants to 7-gallon containers, but they are not getting taller. More leaves are forming, and the plants are getting wider but not taller. Is this normal? Right now, the plant is only about 4" tall and has been that tall for the last two weeks. I have the lights about 24" away from them. Any help or suggestions is much appreciated.
It’s going to take some time for the plant to establish its root system. Then it should take off from there.
So it is normal for the plant to continue to get leaves and wider but not taller until it establishes the root system in the 7 gallon pot?
Yes and all plants are different I got 3 of the same strain. Two are 6 inches taller and the other, but the other is thick all seem to be healthy they just are growing different.
Agree with Skorpion and Bobbydigital. This is normal. Plant is growing like crazy below ground. It will catch up. 
I would have to echo what they said 
I am happy it is normal. Thanks for the info everyone.
Welcome ! Give her a couple of weeks and you’ll be very surprised.
What they said, set to watching 
