^Agreed, waaaay too early for nutes, in that soil. That plant should be like 3-5X bigger than that, before it would need any nutes. I use the same soil, the same sized cups, and grow them until they are 4-8" tall(depending on when I can get to transplanting) and never give them anything. Then i transplant into 1 gallon pots, and still don't give them anything. Then when they get to 14-18" tall, I go to a 3 gallon pot, and still no nutes. Then i give them a week to adjust to the transplant and build new roots, move them into bloom for another week or two,
then start nutes.
Adding nutes doesn't make them grow faster, because they can only process what they require, and that depends on alot of things, such as size, lighting, environment, etc.....I'm not trying to sound like I'm preaching or anything, so i hope it doesn't seem like that. I'm just trying to get you pointed in the right direction, because i know it's tough to get everything worked out as a noob. I was a noob not too long ago, and i remember it well.
