I have red wrigglers in my pots for outside. They are good at aerating breaking down matter and making worm casting. I would use them with bottled nutes tho I’m pretty sure it will kill them. I also use organic dry amendments and they break it down to a more useable food source. I also use worm casting for compost teas it does wonders. When I do seed sprouted teas the left over blended material I place in the top of my pots under the straw as another food source, you must give them something to eat otherwise they will run out of food. I’ll be adding more as I might have had some die off with all the rain and removing the straw due to to much moisture. Hope this helps good luck