If you notice small roaches inside your kitchen, bathroom, or living space you may have German roaches. German roaches are a very invasive species and tend to live in the kitchen in appliances including your refrigerator, microwave, dishwasher and coffeemaker! Each roach egg contains 100 nymph roaches and they are constantly breeding which in turn makes it hard to control their life cycles. If you see one that's enough to know it's time to get started.