Nice work, Brother and GG is looking great!In the veg room my GG cutting is doing well but unfortunately now that I am going to turn her into a Bonsai tree for a while I put her in too big of a pot ( 1 gallon ) I know now that I read the article @Mr. Krip posted a link to.
You can always take the Bonsai out of the #1, prune the roots, and put her back in a half gallon container, or smaller. Just be careful about taking too much off at any one time.
It look like that "unnamed" seedling is stretching and needs to be closer to the light, BTW.