Octopus has a short oval body. Unlike fish, they have no fins and gills. Octopus only has head and wrist, and the connection between head and wrist is not obvious. They have big compound eyes on their heads and eight long wrist feet under their heads, each with two rows of suction cups. Different kinds of octopus have different brachiopods. Octopus is about 12 cm, octopus is 48.5 cm and octopus wrist is 32.5cm.. 1. What does an octopus look like? Octopus is a mollusk with an egg-shaped head. Unlike fish, they have neither fins nor gills. They only have head and wrist, and the connection position between head and wrist is not obvious. Octopus has a big compound eye on its head and eight wrist feet under its head, and each wrist foot has two rows of fleshy sucker. There is a mouth at the joint between the wrist and the head, and you won't find it without careful observation. There are many kinds of octopus, and their bodies are different. Octopus wrist length is generally about 12 cm, octopus is about 48.5 cm and octopus is about 32.5cm..

Second, how to raise octopus 1, fish tank: If you want to raise octopus, you must prepare a suitable fish tank. Different kinds of octopus have different body shapes, so breeders need to prepare fish tanks according to their body shapes. It is also necessary to add some gravel and aquatic plants to the fish tank, which can better restore the marine environment.

2, water temperature: pet octopus and ornamental octopus also have certain requirements for water temperature, they all live on the bottom of the sea, the water temperature will not be very low. When raising seedlings artificially, the water temperature should be kept above 65438 05℃, but the maximum temperature should not exceed 32℃.

3. Food: Octopus likes to eat some food such as shells, shrimps and crabs. When breeding artificially, you can choose to feed some shrimps, shells and other foods. If it's alive, that's best.