Octopus, like crabs contains a lot of Vitamin C.
They can eat Fruits, Vegtables, some cereals (like plain cheerios) and their molted shell (good source of nutrients)
No, they are scavengers/detritivores but they are not decomposers, Detritivores obtain nutrients from consuming decomposing animal and plant material in addition to feces.
Rock pool crabs eat the same nutrients as other crabs. This includes algae, dead animals, snail, worms, turtles, and fungi.
Some types of crabs I know of are fiddler crabs, hermit crabs and horseshoe crabs.
No, when they molt their underground, so they get out of their shell, molt, get back in their shell and eat the exoskeleton. You have to let them eat it because it has the nutrients it needs.
Mostly asian shore crabs, Mud crabs,Rock crabs, Donut Crabs and Spider Crabs. I believe there are no freshwater varieties.
rock crabs are type of crabs.
The three I know of are fiddler crabs, hermit crabs and horseshoe crabs.
mud crabs, sand crabs, ghost crabs, blue swimmer.
no but they do get cancer
I have just checked and this is what i found out. Most crabs are omnivores but prefer to eat meat such as bivalves (clams, oyster's, etc,) because they can assimilate more nutrients from the meat. The plants are low in nitrogen, which is an important nutrient for the crabs. However, there are a few species of crabs that are strictly herbivores.