Bubblegum + OG Kush Autos

Day 1 of week 4. It's been a learning curve this grow, as I've been learning to use my PH and EC meter, and getting to know the ins and outs of the nutrients I've been using. One thing I noticed that when I upped the nutrients to half strength and added the addition of Go Roots, I have noticed a difference. Also been making sure the temps have been around 24 Celsius inside the tent, and the PH is set to 5.7 to 5.8. Plants are 32 inches away from the LED, feels like the right distance for now, but tempted to lower a little in coming days. Also got a large heat matt under the 4 Autos, and I'm just trying to encourage the coco temps to raise and thus promote healthier root growth. Growth is starting nicely now, I need to have these 4 Autos harvested in 11 weeks time, that's looking likely at this stage. I have family coming to stay with me in December, and I don't want them to accidentally stumble upon a full tent in the middle of flower :) One issue I have: Getting concerned about the 3 x Blue Dream Feminized plants, they are free seeds I got with my order and are photoperiods growing on my 20hr schedule with my Autos. I will monitor their growth over the coming weeks, will either flip them to flower early if they can grow enough over the next 3 weeks, but the next option will be letting them veg until December, then storing them outside untill the guests leave and then flip them to flower. I can hide them if ever in the back of my property, and it will then be summer. In short, the main thing I've learnt this week is the importance of Ph and nutrients and temps. I'm looking to build a bubble bucket this week to start experimenting with dwc. Its been all I can think about, the possibility of discovering a new method and what will work for me, considering it's a fairly cold climate where I grow. That will be another grow journal entirely.