I tried to start my own worm farm but it is better to start them off in the winter in your garage. I tried the nightcrawlers and they perished in 75 degree weather within a week.
The mites are not much of a problem for me. If you are making compost than they are amazing to have. They do not harm your pets but can become very prolific in your bins. it is easy to get rid of them. just put a watermelon rind in the bin and they will swarm. then you can just bury the rind and your little workers in your garden.