The tap root is just that, tap root. It is the trunk of your root system, it anchors the seed. This is so in nature, the seed stays put and doesn't get washed away. From this tap root many almost microscopic "hairs" grow these are the beginings of your root system. When we distub our germinated seeds or handle them we are distroying them. This stunts and sets the plant back. Try just germing your seeds in a egg crate. Line it with a damp papertowel.cover it as well. Shut the lid place it in a warm dark spot and wait for the pod to crack, when the tap root is 3 times the size of the seed pod. prepare your (cup). Chose a small plastic kegger cup. Fill it 2/3 full of enert soil look for a mix with as close to 0-0-0 npk as possible. Avoiding those that have nutrients added. This will NOT help your seedling. make a hole 3/4 to 1/2 inch deep. Carefully place your sprout head down, if possible seed husk attached. This will cause the germ to take a extra day to emerge, this is ok!!!! What you are making this baby do is work for it! It wants to come up! To emerge it must turn 180deg, in doing so it will shed that husk on its own, and will be more vivatouse in it's begining. Cover your now planted sprout, water, sparingly, a few drops everyday around the stem will be plenty sufficiant. Now place under light, and be patient, the plant will do the rest. This is very simple, as well as practiced by many. If your seedling starts to stretch, adjust your lights approximity. Marijuana will stretch away from, as well as toward a light. Hot lights cause the plant to want to excape the light. Cool lights that aren't close enough to provide the proper lumens, will cause the plant to travel toward the light source. We only fill the seedlings cup 2/3 full, so as this happens, and your getting your lights dialed in, you are able to fill in around its stem. Kinda like pulling up your britches. good luck with your grow and peace