What is the main predator for viper fish?

The main predators of viper fish are larger deep-sea fish, such as certain species of tuna and larger predatory fish like the sWordfish. In their deep-sea habitat, viper fish rely on their bioluminescent features to attract prey, but they also face threats from these formidable predators. Additionally, larger marine mammals, such as certain species of squid, can pose a risk to viper fish as well.