There are composting worms in the Sun Mar compost tumbler! So not only did I get great compost from this tumbler I also got a bunch of red wigglers. I will add them to my worm bins. I have been using it for 2 seasons now. But now it is not working so well so I am just using my Compostumbler. Though I never found as many worms in the compostumbler!
Check out this video on YouTube about the worms in the Sun-Mar 200 Continuous Composter. If the video is not showing up refresh the page :