How long can octopus live on land? Can it be raised in fresh water

Octopus can last a few days on land at most. They can't live on land, but they have a mantle cavity inside their bodies, which can store a small amount of water. If they are on wet land, they can last longer. If it is in a relatively dry environment, they can persist for a shorter time. Some octopuses can persist for a few days, but some larger octopuses can persist for a shorter time.

1. How long can an octopus live on land

How long can an octopus live on land is uncertain, because the structure in the octopus body has a mantle membrane, which can store some water. If octopuses move on wet land, such as the seaside, they can last longer. If they move on dry land, they will last less time.

In addition, different species of octopus can persist on land for different times. There are some octopuses that can persist on land for a long time and can survive for several days. There are also some larger octopuses, which can persist for a relatively short time.

2. Can octopus be raised in fresh water

Octopus cannot be raised in fresh water because they are marine creatures and like to move in waters with high salt content. The salt content in fresh water is low. If octopuses live directly in fresh water, they can't adapt to the osmotic pressure of fresh water, which may lead to dehydration or death of octopuses. If you want to cultivate octopus, it is most appropriate to control the specific gravity of seawater at 1.021. If there is no seawater, you can add some sea salt or seawater essence to fresh water, which can also simulate the seawater in nature.