multi strain first grow amature moves

hey guys start of my first diaries, multi strain. i started out as any eager newbie, and planted myself 3 gorilla zkittlez 1 lemon haze and 1 green crack. all of them straight into root riot cubes in a propagator with cheap 600w blurple light. cube got 1 spray on each edge with normal water, and prays in the propagator to keep moist, roughly 4 times a day. Green crack shown first, approx 36 hours after going into cube. Gorilla z 1 and 2 weren't far behind approx 48 hours. which left me waiting on the lemon haze. i waited four days, with no signs of life, i removed the little bit of sponge i covered the seed in. Couldn't see no signs of anything happened. i hadn't read about it before this point, but from what i know now, believe the seed hadn't matured yet. Tried the paper towel method, to no avail. The third gorilla i couldn't get started either. i must admit though, environment was up and down all over the place first few days.