The Grow Must Grow

Edit of original post. 1 of 2 seeds grew a 1/2 inch taproot, and I carefully planted approx 1/4 taproot down in a previously watered Solo cup (until the soil [Happy Frog] was nice and moist, and a little bit of water trickled out of the bottom. When the soil gets dry, the cup makes a crinkly plastic crumbling sound, so I know to avoid that; also, the cup is lighter, rather than heavier. The 2nd seed, although germinated side-by-side, seems to have cracked open (I whipped out the magnifying glass, lol, when I couldn't see anything with my flawed eyes), but nothing's happening. As a last ditch effort, I put the seed back in the paper towel and back under the bed with anofher spritz of bottled water & a prayer she's not DOA. I'm hoping she's just a late bloomer, but I do find it really ironic they were literally right next to the other to have such different germination results. I'll give it another 4-5 days and monitor it frequently to make sure the paper towel stays wet and see what happens. In the meantime, I've planted her sister and placed the grow light about 2 feet or so above head, and have 2 clip fans and the humidifier going at full blast (I'm trying to increase the humidity levels in the tent). Also purchased drip water system, namely, Big Power Automatic Drip Irrigation Kit, Indoor Plants Self Watering System with 0.5-30 Day Interval Programmable Timer for 15 Potted Plants, Watering on Working Days, which I genuinely hope will resolve my watering problems. Any assistance you can provide to assist with the proper settings is GREATLY APPRECIATED. Also, with respect to the best mediums for growing, I have several brand new 5 gallon plastic buckets (I plan to drill adequate sized holes in the bottom and 7 gallon fabric growing bags. Any suggestions which is best?