First time growing autoflowers

I fried my plants with Tiger Bloom and bottom watering. User error, too many experiments at once, too many different strains. Long story short, I hit PB hard with Tiger as a test and she took it really well, so I hit MC with that same strength. MC got fried, major acid soil zone (remember that sonic the hedgehog level?) and locked out calcium and magnesium, so I culled her after a week of struggling. As a result, I finally started measuring and trying to understand PPM/EC. End of week, I've flushed everyone with: 20ml Big Bloom, 0.5ml CalMag+, total ~400ppm, pH 6.8, plus Recharge. Going to GENTLY reintroduce bloom nutrients and fix my watering game. Top watering only for now, til I have enough runoff to measure. 2AM and RJ latest watering: 400/6.8 in, 1000/6.3 out. MC was hit hardest by my mistakes and has been culled. I needed the room, and really, this is why I initially planted extras. I learned some lessons. AK putting out some resin, looking very stretchy (and hungry). Very interesting smell, almost like loam and mint, like the kind of aftershave in a country club locker room in in the rural midwest. Tallest of the lot at 23 inches. She got hit pretty hard with some calcium deficiency which I assume is from the acid tiger salt bath causing lockout... she definitely has plenty of calcium in there that she just isn't using. RJ has been taking her time recovering from the very late transplant, but she's finally kicking into flower. She seems to be recovering from whatever was making her lime green, and I'm nervous to see how much more she is going to stretch. I trimmed quite a bit of lower stuff. PB was the first to get the strong Tiger Bloom mix, and she took it like a champ—her blooms formed practically overnight and she didn't show much (if any) burn. So that gave me the confidence to hit the other girls with the strong mix. Big mistake... I fried pretty much everyone else except for RJ. I trimmed some lower stuff. She's competing with RJ for second-tallest in the tent. 4AM is bushy but I want to get through this nutrient/pH stress before I take too many leaves. Touching gives some fruity glue that I'm really excited for. Square fabric pots are bad and dumb. 2AM got the fry of the tiger as well, but I think I'm working through it with the gentle flushing. She's definitely looking like the first to be chopped, but I don't know how much longer. Three weeks? (other tent) : RQS Orion F1 and Mephisto Zinfandel are cruising along in week 4 with no training besides leaf tucking in the other tent. Also at week 1, I've got Fastbuds Grapefruit, Mephisto (Mango Smile x 4AM), and RQS Epsilon F1. The Grapefruit will stay in solo cup, the Mango gets 2gallon, and who knows about the epsilon.