First grow - Red Poison & Zkittlez OG

I germinated two seeds using the paper towel method, one from Barney's Farm - Zkittlez OG, one from Sweet Seeds - Red Poison - both are autoflowers and this is my first grow. The Red Poison popped first, at around 24 hours and I planted it at 40 hours. The Zkittlez OG took a bit longer to pop, about 60 hours and planted it at hour 72. I did swap out the container and paper towel at around the 48 hour mark as the paper towel started to show signs of mold. I then transferred them into their final location, 5 gal fabric pots using organic soil. No nutrients this week, as the seeds have just been planted. pH of the water has been roughly 6.3 after adjustments. I have the planted seeds on an 18/6 light schedule under my Spider Farmer SF2000 and will move that to 20/4 after the seedlings hit end of week/a few inches tall.