Minimum Pot Size To Maintain & Recycle Living Soil?
I was speaking with the owner of a local grow shop, and his opinion was that you need a minimum of a 15gallon pot in order to start building a living soil that can be recycled for consecutive grows (I know there is lots more to deal with in keeping it healthy and alive, but I need to start with pot size). He uses 100gallon fabric pots indoors (has worms, etc), and keeps it alive and reuses the soil.
As for me, I have never made my own soil and never actually considered. But having done my own research, I found a great informative article on the best cannabis soil https://www.ncsm.nl/english/grow/best-soil-for-cannabis . I read also that soil is certainly the most forgiving medium in comparison with hydroponic substrates. Hope this helps