Yes we are, and so are sperm whales, and killer whales, and all sorts of fish when they (The octopi ) are little.
NO
THey squirt out ink on their predators.
Since octopuses live in rocks and such they will find a lot of fish hiding from their predators.
yes they have predators. Their predators are sharks and large fish.
Octopuses are not decomposers. They are consumers.
giant octopuses
Ink their predator then swim away
Octopuses and squids can also move by using a form of jet propulsion. Water is drawn into the mantle cavity and then forced out through a tube, propelling the cephalopods backwards from danger. In addition, squids and octopuses produce a dark-colored ink when the are frightened. As this ink is released into the water, it helps to hide the mollusks/squids/octopuses and confuse its predators
risso dolphins sharks and beluga whales eat octopuses
Periwinkles snails are preys for octopuses, craps etc
Natural predators of octopus are moray and conger eels, dolphins and sharks. - From a Google search.sharks
Octopuses, or octopi, are predators. They hunt crabs, prawn, fish, and mollusks. However, in turn they are also hunted by sharks, dolphins, and other sea animals, so they are also prey.