The plant looks very healthy, that being said i do see a tiny bit of root gunk forming there in the last pic. I recommend picking up some 30% or higher food grade H202, and giving her a 2ml/gal dose of it whenever you see it. Dont add aquashield while the h202 is present. Usually takes 24-36 hrs for h202 to break down, then you can add some AS. Or mix up a good concentration h202 bath, dip her roots in it for a min or so then back in the res. Other than that looks good.
When working with small spaces i would flower sooner rather than later, esp if you dont know how the strain performs.
Keep it green buddy.