You might see lobsters in a store tank, and think, “Hey, that water looks kinda clear.” Is it saltwater or just tap water? It’s definitely saltwater. Those tanks are carefully mixed with marine salt to keep the lobsters alive.
Fishmongers are basically chemists in aprons. They test the water, the temperature, the pH. If they dumped a lobster in plain tap water, the store would have a very expensive pile of dead lobster within hours.
And honestly, a dead lobster is no fun for anyone. Especially not if you had plans for drawn butter.
Freshwater Lobsters: Herbivores Or Carnivores? | ShunCy
The One Exception That Proves the Rule
Okay, hold on. There is one weird thing. Some lobsters can survive in brackish water for a short time. Brackish water is a mix of fresh and salt—like where a river meets the ocean.
But that’s like saying you can survive on airport coffee and a stale pretzel for a day. It’s not a long-term solution. Lobsters need full-strength saltwater to thrive, mate, and grow their grumpy little claws.
So no, a lobster can’t just swim up the Mississippi River and start a new life in Minnesota. Sorry, Minnesota. Your lakes are safe from clawed invaders.
