Hello, I've had this hermit for a few months and noticed that he's been nasty towards other, different hermits. I was wondering if maybe he's not safe to keep with others. He's also the biggest one in the tank.
I think that’s the norm for hermits actually If I’m not mistaken, he may be fighting them to take their shells. You may want to buy a few different sized empty shells for your hermits to stop the fighting.