Hot soil vs no til living soil?

What is the difference between no til living soil such as so hum and hot or kind soil such as California hot soil or kind soil?
Any suggestions on hot or kind soil to purchase?
Any suggestions on living soil to purchase?

Would it be more cost-efficient if I created my own hot or kind soil? If so how would i make it?

A post was merged into an existing topic: Looking for some water only soil advice and recipes😊