yes if you use any nutes on ur seedlings u will be sorry u did , like doeeyed said they have everything they need for right now , i usually wait until they have 4 stes of leaves before i use 1/4 strength nute solution, and remember every strain is a little different they all react to the nutes in different ways, some can take heavier feedings then others , ur best bet is to take it slow on the nutes and see what she likes. Good luck
Doeyed my brother swears that talkin to his plants helps them grow sometimes he sings