Big Bang Auto - First Grow

First time growing. Growing one Big Bang Auto using a BAVAGREEN 120W LED light, Samsung 3500K LM301b, Osram 660nm Deep Red, Dimmable Meanwell Driver. Electric heater for temp, fan in room and using electronic temp/hydrometer. I am not using a tent but using a light stand in a spare bedroom which keeps the whole grow a little more low key for the wife! 5th May - Started germination via paper towel method for 48 hours. 7th May - Sowed in Fox Farm Happy Frog 30% mixed with ProMix Seedling mix (45%) and Perlite (25%). The FF Happy Frog was added to the outside and bottom of the 3 gal fabric pot and the ProMix seedling mix in the middle with the Perlite mixed throughout. Bavagreen 120 W LED dimmed to lowest setting 3500 LUX using free phone app as guide. 18/6 Light cycle Day 1 (8th May) Seedling emerged Day 2 Seedling came up in morning and I removed it's stuck outer shell in the evening. Day 3 Leafs starting to open up after seed head removed. Gently spray small amount of water Ph 6.8 near base of plant once or twice a day if dry. 1.5 inches tall. Day 4 Stretched to 2 inches this morning. Increased light up to 25% using dimmer 3500 to 10,000 LUX which hopefully slows the stretching. Day 5 Leafs growing and the upward stretching has slowed maybe. 2.3 inches tall. Day 6 Saw that humidity is only at 25% so opened window a bit to let in fresher and more humid air in. Humidity ranging from 28-30% throughout today now. Also good to circulate the air as it was getting a bit stagnant maybe. 2.5 inches tall. Day 7 New leafs appearing. Slight curling of some edges on leafs so looking to increase humidity up from the current 29/32%. 2.75 inches tall. Any comments and feedback is always appreciated. Many Thanks!