Hello, I found two eggsacks over the winter and kept them in my garage until a couple weeks ago when i took them indoors to hatch. After a couple weeks one mantis finally hatched. Only one. I am pretty sure it is a european mantis. I have now waited a day and still no more hatched. The one that did hatch is doing fine but can anyone tell me why only one mantis came out. Also, i heard that you can feed baby mantids brine shrimp. Is this true because i really dont wanna get a thousand tiny crickets.