Giant black mountain ants are small in size and have a very high chance of drowning (we don't know why), so we have to pay attention to the amount of food we feed them. In addition, if Giant black mountain ants have been exterminated once (due to accidental death of a certain number of worker ants) before they reach 20 workers, they basically can't be fed anymore, and they will keep on laying and eating eggs, which would affect their confidence in keeping them.