Coco vs. Nutrient Soil

For the best soil for autoflower plants,I recommend you to using 70-80% organic soil mixed with 15% perlite and 15% coco fiber, or substituting coco for vermiculite or biochar, always respecting their properties to avoid having oxygen or water in excess

Go ask mr canuck. Only he knows exactly what he does if he tells all. Can't get his results asking someone that is not him. But a less nutrition first is ideal or it will cook your seedlings.

I'm pretty sure he starts his seeds in his pre mixed soil/coco. I remember a video of him saying " your a great guy, yeah the plants sound high".