First Grow - Classic F1 Auto White Widow

So, one week up and running and there is so much going on. The roots grew almost 30cm. So, in one week from seed to this, amazing. Started giving them root juice. Because I have a 116 liter system, I need to give them 464 ml in 7 days so 66 ml per day. I also had one who grew a very small root in the startblock but in the end, didn't make it. You can take a look at the photo's below. I keep my PH at 6,5. EC isn't doing that much but that's oke I guess. For the little knowledge I have, things are looking good. Keeping temperature during day at max 27 ºC and humidity around 50%. During night I'll let the temperature at 19 ºC minimum. We had very sunny days this week and, it was a good test for the room if it could take the temperature stable. I had some worries about that but everything worked perfectly.