Monkey Business that's so sad, darn ants. And for the OP some ants around here will allow the colony to have more then one Queen so you wouldn't want to make a mistake and put a queen in there by accident because if she wasn't eaten there is a great chance she would lay eggs in your viv. That wouldn't be good because she can start a whole new colony on her own. The carpenter ant I know will allow one and wont accept another if the queen is killed and they will eventually die off because they live for the eggs. This is how I lost my colony, I was cleaning the tank one day and I squished the queen by accident. They carried her dead body around for days and within about a month they all died off. I would have to agree with Monkey Business that's it may not be worth the risk.