Well I haven't had any hatchlings yet, I have eggs now. But tubs aren't air tight. As long as you don't have the press and seal on the tub there is going to be air exchange. I'm sure you'll be opening the tub every day or at least every few days. I wouldn't worry too much.
yeah thats what i thought thanks for the advice
The Matrix is a system, Neo. That system is our enemy. But when you're inside, you look around, what do you see? Businessmen, teachers, lawyers, carpenters. The very minds of the people we are trying to save. But until we do, these people are still a part of that system and that makes them our enemy. You have to understand, most of these people are not ready to be unplugged. And many of them are so inured, so hopelessly dependent on the system, that they will fight to protect it.