Please help with breeding mealworms

[J-Man]

I'm trying to breed mealworms and I'm wondering about how long until I notice NEW worms after I first start seeing beetles?

And, I heard that a female beetle can lay anywhere from 500 - 1000 eggs. I have about 10 or so beetles in my colony, does this mean I'm going to have thousands of beetles? Or is there a high death rate?

Thanks for any help.