no, i would ph at 5.5 and let it go to 6 then repeat. also what strain and nutes are u using at 2 months those should be atleast 2 feet. either way they will tripple in size. they look good though... maybe there just under nutes, the lighter your leaves the less nutes your giving them, as u increase your nutes they should become more of a solid green, but def make sure u done oveer fert cause it will hurt them.