This guy at my lfs said that if I put a lobster in with a Niger trigger the trigger would tear the lobster to pieces. Is this true? What about the same scenario with a Dogface puffer and lobster?
Also, keep this in mind...
Not only are Puffers and Triggers carnivores and will eat Lobster...Lobster will also eat Puffers and Triggers (as well as just about any other fish) if the fish are small enough...