I've recently inherited a colony of dubia roaches and have a couple questions.

1. I've heard that some use cat food as a diet supplement but I have also heard that that isn't good for a tegu. Are there other alternatives? If not, then how exactly is the cat food prepared (I was told to grind it up)?

2. The water crystals I picked up from my local reptile shop has calcium in it. They told me that it would make the roaches not molt, but that it was okay if they are feeder roaches. Is this actually okay or was I told wrong?

3. I don't have any tape around the top or my bin, should I add some to keep the babies from climbing out, or is that not necessary? I haven't had any escape yet.

4. Lastly, I live in MD and the temperatures are down low right now and humidity here is pretty high usually. If some of my roaches were to escape into my house, would they reproduce and would I have a problem?

Any help is appreciated. Thank you