RQS Gorilla Auto & Haze Berry Auto

Ok, now I'm worried. It's the 4th week, and they have only the first leaves with five fingers, and they don't look too strong... I wanted to start LST on them this week:/ And another thing... Haze Berry just showed its first pistils(?) It looks really strange in this period, I expected more leaves before it happens. The previous plants had the 6th nodes at week4 (check my other diary). Last week we had high temperature (never went above 28°C), and also high humidity (never went above 70%). I grow indoor, my cabinet is not closed properly, so that was the best, I could achieve. I didn't change anything else, small amount of water, same lamp-distance, same light period, BUT I had to open together the veg and the flowering boxes, so now they receive some light from that lamp too, which is a 2100K CFL. I also have Terra Grow, but I didn't wanna use it due to the lack of ph/ec measuring tools. Now, I don't know, what caused this, and how to solve it, please, help!