So I was thinking about getting a Giant freshwater prawn because they look pretty BA. But I should confirm several questions before I plan to get one. They have very long and biggish claws, but since it's a prawn and not a crayfish, are their claws any threat to smaller fish or other bigger fish? I honestly think they're too slow and long to maneuver well honestly it seems like to me they dont use them to feed or self defense. And my other question is, but to a much lesser degree since they have a carapace, would fish bully them to a considerable amount to be worried? Otherwise, would it be a good idea to have one as pet/bottom cleaner? Thank you for your time.