It all depends on a lot of stuff, like soil or hydro? what are they in? You need to be able to let them get some roots before transplanting. they should be in rapid rooters, rockwool cubes or soil until they establish a good root base and procede to transplant. Good roots at first is soo essential for your chances of a good grow. There is a product out there that is buy far the best for roots. It's name is Roots Excelurator by House & Gardens. It is expensive, but could be the best purchase you will ever make. Good Luck