Here’s a video of some crickets laying eggs. They insert their ovipositor, which is a needle -like appendage between the female crickets back legs, into the “mud” which consists of coconut coir and worm castings at a 5:1 ratio. The medium is kept moist and sits in a microwave dish at one end of the bin. This “mud” provides a nice place to lay eggs and somewhere to get a drink. After about 1-2 weeks, the eggs will hatch. If you keep temps between 84-91F and provide good food and enough water, you will have a lot of breeding crickets ready to lay eggs just like this!