They look cool

This is incorrect. Most are typically 1 foot long but can reach up to 3.3 feet.

This surprised me, so I looked it up. Nope. Fake news

Fun fact: this is a female. The male deep sea angler fish are MUCH smaller, and their life largely consists of latching onto the body of the much larger female, impregnating her, and then essentially becoming parasites, that iirc are more or less fused with her body