i bought a blue “lobster”, im assuming its a blue crayfish like i see on here sometimes. he/she is now in their new 55 gallon home. what im curious about is if hes going to try to eat my other fish. i have some balloon mollies, some lyretail mollies, a juvenile angel fish and a couple guppies. i figured that if he did try to get them that the tank is big enough to get away?