Hi all. I'm new on this forum, though not new to permaculture, having done a course at the PRI some years ago. I've got a worm farm in an old bath tub, which has been fairly successful for about 6 years. Lately the farm has gone into decline, with the worms just dying off, and slater bugs and earwigs are taking over. There were always a few of these critters around, but now they are outnumbering the worms by about 100 to one. Does anyone have any suggestions?