Hello ! On the week 5 video I can hear the song "Lucky you" right ? Well your plants look pale and it's normal , I'm afraid that you're not using the right nutrient since the start , let me explain : You'r using sensi bloom which is a flowering nutrients , you should had start with sensi grow 1st then switch to sensi bloom after the 2 1st week of flowering ( or the 1st one it depend on you) so now your plants have a N def and maybe other def. Your Ph is also a bit too high , prefer a 5.8 to 6.3 ph range and don't forget to check you water runoff ph as is may be different from the input ph , be carreful of the ph fluctuation. I hope it will help you 😁👍