Shelter for Your Pet Lobster

Your lobster will need a proper environment to live in if you are going to keep it as a pet. You should set up these lodgings long in advance so you can be sure that everything is working appropriately.

A Tank

A lobster is a water creature and will need a tank. Smaller lobsters could live in a 20 or even 10 gallon tank, while a large lobster would need a 100 or even 200 gallon tank.

Aquarium lobsters should be able to live happily in water that is kept at about 70 degrees and at a pH level between 7.2 and 8.4. If your water is not cold enough, you may have to invest in a chiller to keep the water at the right temperature.

Lobsters need moving water. That means that you are going to have to change at least 25% of the water in your tank at least once a month. More is better. A happy lobster is a lobster with fresh water conditions all the time.


Lobsters are often very active in the right environment. Give them some rocks, and they will crawl all over the tank. They also seem to like rocky structures with caves where they can go to hide. Place gravel at the bottom of the tank instead of sand to make your lobster feel more at home.

If you happen to have a reef tank with coral, find a different tank for your lobster. A lobster will destroy your coral.


Be careful who you put in a tank with your lobster. Lobsters are scavengers and will eat whatever they find. This includes small fish who are just hanging around minding their own business. Also remember that lobsters will occasionally molt, and this makes them vulnerable to an attack from larger fish. They could also be attacked by another lobster.