I have like 300 worms in each 70litre pot . I had some for another bed but was taking toolong so threw em in lol. Worms are happy 2inch down 1cm down is like ramen noodles of pot worms. I know thete bennies. But isnt it a ph indicator? Im dialing in a swick and bluemats so had some moist days . Seems to be working well its all moist now no dry patches but pot worms thriving in the bluemats area