Add the nutrients at two weeks. That way they have roots. It also depends on the nutrients that you have.
I start feeding at 3-4 weeks with a very mild solution. Then about 1/4 strenght at 5 weeks. Over ferting causes deficencys and stress.
Thx for the heads up ill research more on when to add nutes right now! I do have Nutes already I bought everything I needed b4 grow and started this basil plant from a clone off my soil basil. Rep+ from me man thx lots