Poisonous Venom A venomous bite from a blue-ringed octopus can kill a human by causing asphyxiation. By paralyzing or killing its prey with poison, the octopus has a much easier time turning a foe into a meal.

Sea stars are mostly carnivorous and prey on mollusks—including clams, mussels and oysters—which they pry open with their suction-cupped feet. Many different animals eat sea stars, including fish, sea turtles, snails, crabs, shrimp, otters, birds and even other sea stars.

Newly hatched octopuses will eat small foods such as copepods, larval crabs, and sea stars. Adult octopuses feed on crabs, clams, snails, small fishes, and even other octopuses.

Although some people have successfully kept starfish (seastars) in octopus tanks, I would recommend it only in the case of a very small starfish. Starfish can be problematic to keep under the best of circumstances. The alternatives, serpent stars, can grow large and aggressive.

Yes, octopuses are carnivores and can eat clownfish.

Octopuses are carnivores, which means they eat meat. Meals can include clams, shrimp, lobsters, fish, sharks and even birds. Octopuses typically drop down on their prey, envelop it with their arms and pull the animal into their mouth.

Ideally run the tank with some fish like mollies or damsels but be aware that damsels will need to be removed before the octopus is added and any other fish will be seen as a snack! You can’t just buy a new tank, add water and some live rock, and then plop in your octopus.

Predatory Starfish Oddly, starfish can present more danger for anemones than vice versa. Many species of starfish are voracious, if slow-moving, predators. These predators devastate coral reefs by eating coral and anemones.

mysis shrimp

Starfish, also known as Sea Stars, are one of the most beautiful looking animals in the vast ocean. They have a surprisingly unusual anatomy, with no brain or blood, yet are able to digest food outside their body.