i just started growing 4 new seedlings, 3 of the 4 have already sprouted. ive started them in a small pot with miracle grow soil. this is my 2nd grow so im still learning. on my first grow i used fox farm nutes, but i think i may have started to use them too soon. should i wait a while before using any nutes since miracle grow has some in the soil already? or should i switch to fox farm soil as well? any tips or advice? thanks!!