they really shouldnt be having issues under 300w in a 120x120. thats actually an underpowered unit for a 120x120 tent. sometimes new growth comes in a little twisted and odd and its not a great big deal if it grows normally after a while.
they also look very well fed with tiny bit of tip burn and seeing this is an auto i’d keep an eye on it and alternate between feed and plain water. sometimes overfeeding can cause twisted growth at the beginning as well.