Mantis shrimp are predatory shrimp that often get imported unseen in LR. They are notorius for destroyin clean up crews and killing fish.
However they are often very desirable to be kept in species only tanks. Do a google search and you will find significant amounts of information.
I dont think do it yourself surgery is too good for aquarium inhabitants. Yes, the smasher mantis shrimp are known for breaking glass aquariums....thats why you will hear people say you should only keep them in acrylic aquariums.