When I start a new grow, I plant directly into a 5 or 6 gallon bucket full of
Promix. Prior to planting, I soak the
Promix a few times the day before planting. This allows the water to spread out evenly and gets the buffering going. After planting, I don't usually water for a few weeks as the roots fill out. I have a small reserve of nutes that I add to the
Promix to feed everyone until the plants are a lot bigger.
Planting directly is just the way that I have done things for decades, and for me, it is much easier than repotting a few times. It works well for me but might not be the best option for newer growers. The water in the buckets is plenty for seedlings or clones, and the
Promix doesn't get waterlogged despite holding a considerable amount of water. As long as the roots get O2, they usually thrive.