Growers Choice Northern Lights Auto

Definitely more growth showing this week from her. Minor concerns regarding leaves folding (I can see a slight fold in this weeks photo); I ordered pH up/down to help control the pH levels to possibly prevent leaves from folding. I haven't added any nutrients to this grow, yet. I have the FoxFarm trio liquid nutes. Maybe I should begin a light nute feeding starting week 4? Maybe I should've started feeding with nutes already? I'll do some more reading and see where we are at next week.