I kept a blue lobster and a zebar lobster, with the latter living for 2 years. They don't need any special accomodations, except that you keep a sturdy lid on as they like to escape and wander about the floors. Both escaped several times.
Also, don't keep small fish that they can catch with them. Bottom dwellers, like botias and clown loaches follow suit. The one blue I had caught and literally ate the 4" clown I had; I never saw him again!
Give the little guy a house of flat rocks set against each other for shelter, like a home!
Mine enjoyed shrimp pellets the best; they both went nuts for that stuff!
They are great little critters; they'll quickly become the most interesting of the tank!