Hello to all. This is my first time growing. im really excited but im having a lot of problems with my seeds. im germinating my seeds in a cup with water half way full with a plate over the top under a desk like. this seems to work very well. after about 20 hours most of the seeds seem to break open and a lil white root pops its head out. so after this i plant the seeds that have opened into rockwool in a tray with plastic over it and a grow light about 2" away. but as soon and this happens its like the seeds stop growing and just root away. i had one seed that grew a root about 1/4' and then it just rooted away. i dont know what the problem is. can some one plz help me?