I'd steer you towards taking one bag of Fox Farms planting mix (red bag), one bag ocean forest, one bag of light warrior and adding 1 cup of the peace of mind fruit and flower dry fertilizer and maybe some added perlite. Use 5 gallon or larger containers for auto flowering plants, they will want and use the room and reward you with big yields from the root space. Water with molasses and water only and at flush. Keep your temps in check and let the soil dry out before watering and you should have a great grow.