i wouldn't because they can bully each other but you can try to put them together
Yes, bananas are good for them!
they stay in the same place
Yes. The hermit crab usually lives in a pod of 25 or more. So, the more the better. But, hermit crabs can get territorial, so have plenty of space. And, some crabs will pick on crabs of the same size. They feel they are a threat.
Very few. Because hermit crabs need to remain stationary to molt they need to be kept with their own kind to avoid being cannibalized. Some owners do add rollie pollie bugs to their crab tanks as cleaners and that has proven to be quiet successful.
Hermit crabs do not care much for the color of the shell, however, they prefer shells with a pearl lining inside. Ecuadorian hermit crabs are very picky for their shells though! Try to get the same shape and colour of shell for these ones.
They both are crabs right?
No. Hermit crabs live on huge beach colonies and are accustomed to working and traveling in huge groups. Crabs really need to be kept in groups (best case scenario would be in same species group). Crabs should be kept in groups of 3 or more.
If hermit crabs had tongues they would have had either a bigger head or their tongue would stick out.Do you know how a butterfly eats? Well a hermit crab uses the same way to eat food, his tongue is a straw!
Hermit crabs don't have a regular size because they grow, they don't stay the same size.
normally there just like crabs so they eat the same things as crabs that are dead fish or left over
Yes, hermit crabs don't usually fight. You could give the new hermit crab a bath so that it smells the same as the other hermit crab in you tank.
Hermit crabs and turtles NEVER should go in the same tank! hermit crabs need a ton of humidity, and turtles don't even live near hermit crabs, plus hermies can drown. Hermit crabs need their own tank. 2-3 small hermies need a ten gallon tank. I don't know about turtles, i would also get ANOTHER ten gallon tank.