Don't worry. They live in places so deep, at such high pressure, you'll never be face to face with them. If you try to dive down to see them, you'll be dead long before you reach anywhere even close. And if anyone tried to bring them up, they will die.

This is why fishermen do not catch them in nets, and you'll never see ny of these in aquariums ... until somebody with too much money builds a special high-pressure aquarium ...