@George,I think there might be a root issue , but it's still green so who knows , seed genetics are so important , my advice get a fast buds seed and stick it next to it ๐ฑ
Usually you start seeds into a root plug or a lil cup, then when she gets this tall you transplant your seedling deeply to the embryos leaves ๐ into a bigger pot.
But you've found the best way to make it stand still.