So I germinated my autoflower seed, no problem. I put it in rockwool and my 2 baby leaves sprouted and then 2 serated leaves sprouted all within 2 days, great. Then the seedling stopped growing and has stayed the same height for 4 days. I said to myself theirs a problem so I pulled the rockwool cube out of my Dwc clay pebbles and their is no tap root coming out the bottom. I carefully broke open the cube and the root was there just not coming out the bottom. I hope by opening the cube the root will start growing. I think the rockwool cube is manufactured to tightly preventing the roots from growing threw the cube, We'll see. Has anyone heard of this problem before?