One of the greatest advantages to keeping/feeding dubia roaches is their ease of breeding. With the correct care, they will breed on their own without any extra work on your part. That correct care is a very simple formula of keeping them warm (85+ degrees Fahrenheit with 95 degrees being ideal), feeding them a good quality roach chow, giving them access to a clean water source, and providing them with good ventilation. Assuming those basic needs are met, your dubia roaches will readily produce enough offspring to create your own self sustaining colony so that you have a constant supply of food for your pet.
It's best to keep 1 adult male per every 5 adult females as the males can breed multiple females. Adult females will produce around 25-35 nymphs (baby roaches) every 6-8 weeks. These nymphs come out of an egg sac at about 1/8" in size. Because their offspring are produced from an egg sac, dubia roaches aren't considered to be egg layers or live bearers, but instead are in a middle ground where the egg sac is stored in the females body until the babies are born. Dubia roaches typically reach adulthood and are ready to start producing within about 4 months.
While they are extremely easy to reproduce, it is suggested that you keep track of how many nymphs you are producing every 4-6 weeks. This is to ensure that everything is still going as planned month after month and that your roach production isn't slowing down as your breeding adults become older. By keeping track of this, you'll easily be able to tell when your breeding colony has slowed down significantly and when it's time to feed off your older breeders.
As you can see, breeding dubia roaches is a relatively simple (especially compared to other feeders like crickets and super worms) and easy process and one that you can try on your own without any significant investment in either time or money. We are always happy to answer any questions that you may have about dubia roaches (breeding or otherwise). Feel free to send us your questions through our Contact Us page.