I think the stretch is slowing down. The stalks are starting to thicken up.
During week 2, the plant required 1 gallon a day water or it would start to wilt.
Already this weekend I see 1 gallon not enough so I'm gonna have to give it more, becoming a bit inconvenient :)
But at the same time, I like the fact it is not growing completely out of control and into the lights.