Gorilla Glue Auto and LSD-25 Auto

So far the plants seem to be doing okay. There was one moment during the week where I panicked because I thought LSD-25 was looking a bit too yellow, and she did seem to have some kind of venal chlorosis, however I think this may have something to do with her genetics. I've compared my plant to other people's and this strain from FastBuds seems to commonly exhibit this trait so I may have worried for nothing. Also I would like to apologize to the people who answered my question last week. I accidentally called my coco coir soil, so there seemed to be a bit of confusion and some wrong answers regarding my personal situation, but hey that's on me. I have a bad habit of calling coco soil. Now in my complete panic I ended up overfertilizing my plants. 😑 This is my very first grow, and although I have done dozens of hours worth of research on the topic, I still got confused and conflated how high the EC is on other people's grows to how high mine should be. I did not realize that the "EC target chart" I got from cocoforcannabis.com was meant for the specific nutrient schedule the professor provided. This was quite a big mistake on my part, therefore on Friday I flushed the medium with pH balanced water and resumed the appropriate fertigation the next time. The plants' first fanleaves have now warped because of this, however I think I may have gotten to them in time, before I caused any serious damage. Starting from Friday I am now giving them 1/8 of the recommended dosage from advanced nutrients, which comes up to 0.5ml of each of the Grow Formulas in my 4 liter watering can. I don't have any other nutrients to give the plants, but I would like to get my hands on some more things, like maybe the voodoo juice, silica and the big bud for when flowering starts. I've also taken the advice from @Mr_Weeds_Autos and I've brought the radiator into the grow room to bring the daytime temps up a bit. To try and lower the cost of heating I tried putting this ECOHEAT greenhouse heater in my tent, but it didn't really seem to do anything, and that may be due to the intensely low wattage of 45. I think this product is meant for defrosting, or maybe my exhaust fan is too powerful for my little 2 by 2. I will try and bring the humidity down a bit too, so tonight I have placed a dehumidifier inside. I'll see how that goes. Thanks for reading :)