I got a little tackle box form Walmart. Drilled a few holes in each little area. Put a superworm in there and they will start to change. The beetles do have an aroma. But only if you mess with them. You need to move the beetles. I have found that they feed on the smaller worms and eggs. So about every two weeks I move the beetles over to a new tub. In about six months you will have tons. It is not as hard as some people make it out to be.