check out my fem white rhino. is the ok PICS

Hello all I started this girl a couple week ago I think its on day 16. Is this normal growth for a 16 day old plant? And also it starting to get rust spots how can I help her?

What is that you've planted in? It looks like it needs a good feeding of N and ca/mg. The medium your using i'm guessing doesn't have any stored nutes in it and because of that your plant is starving

Its Kelloggs patio plus potting soil and its loaded with organic matter. Kelp, guano, castings and a lot more. granted it may not be synthetic but I was under the impression that it would feed her for a couple months. Am I wrong about this? If so I can start feeding with fox farm, gen hydro, or house and garden I love the H&G but its so damn expensive. What do you guys think????

In my experience, soil additives aren't the way to go, especially for small and young plants. A carefully controlled nutrient solution is more desirable, using a soilless mix as medium.