Any Recipes for a solo cup after roots show from cuttings?

Currently, I am about to experiment with the utilization of a small quantity, precisely one teaspoon, of DTE 3-3-3 in my cultivation process. I am seeking alternative suggestions for forthcoming concoctions. For your information, this marks my second attempt at nurturing clones. During my initial endeavor, I simply placed them in pure happy frog soil for the 16oz solo stage.

My rooted plugs go right into plain Roots Organic soil in a Solo. They get water and Recharge for the first week and then it's 1/4 strength nutes. I don't think adding anything other than microbes is worth it at this stage. All I want is rooting. I'll feed it when it's big enough to need it.

I use mycorrhizae at transplant, a heaping Tbsp of worm castings, a tsp of kelp meal, and a tsp of Espoma bio tone starter plus (4-3-3) on top. It’s not a lot of food, but I feel that it helps the soil critters happy. I like to give ‘em a little coconut water in their water for the boost of growth hormones too. That stuff is like BRAWNDO for plants.

Are they rooted already or this is the mix you're going to use to clone them? If they're already rooted then it's probably fine