I have one of these sitting on the table right in front of me. We've had it for a couple months, and the brine shrimp are swimming around happily still. I figur

I have one of these sitting on the table right in front of me. We've had it for a couple months, and the brine shrimp are swimming around happily still. I figure it has a 50-50 chance of being broken by my kids before the shrimp die.