Blackberry Moonrocks/(Expert Seeds)

So far so good. I get so very nervous during this stage. Really, I stay on edge all the time. They are sort of tender now. So, I try to handle with care. Actually, I just make myself leave them alone. It's been said that the plant has enough natural nutrients to fed it for the first 3 - 4 weeks. That could be debatable if you were trying to achieve a "perfect" grow but I have better luck if I just give the plants water and light for the first 3-4 weeks. Now that said. Mine are a little pale and they want some nutrients. I transferred all the seedlings to their final home. These two plants have gone in "homemade" soil, 5- and 3-gallon buckets. I have no idea about the NPK or Ph of my soil (I know) but I plan on stabilizing with feedings. The soil composition is mainly coco, perlite and very little humus and "homemade" soil so I should be Ok... I hope? Anywho, I am just watering around the root riot cube and the cube itself. Very little water. No need to get all that unknown soil in the game yet. Micro doses are my plan. Oh, I sprinkled some mycorrhizae in the area where I transplanted. They are in my New 6x6 Flower Room where they will Veg and flower under the Medic Grow EZ-8 1000w light. After this grow I hope to use this room just to flower perpetual grows. Haven't had time to experiment with light yet as far as distances and power. It has % dimmer switch and I don't have it on 100%. I just got everything set up. So for the next couple of days I will try to keep PPFD around 500. ANYBODY have any thoughts? In about a week I will begin giving full line of nutrients.