* Ocean sunfish (Mola mola): These are the largest bony fish in the world. They can grow to be up to 10 feet (3 meters) long and weigh over 5,000 pounds (2,300 kilograms).
* Freshwater sunfish (Lepomis spp.): These are much smaller, typically ranging from 6 to 12 inches (15 to 30 centimeters) long.
To be clear: When people refer to "sunfish" without specifying a species, they usually mean the ocean sunfish.
Here's a table comparing the two:
| Feature | Ocean Sunfish (Mola mola) | Freshwater Sunfish (Lepomis spp.) |
|--------------------|----------------------------|-----------------------------------|
| Size | Up to 10 feet long | 6-12 inches long |
| Weight | Up to 5,000 pounds | Up to 2 pounds |
| Habitat | Open ocean | Freshwater lakes and ponds |
| Diet | Jellyfish, plankton | Insects, crustaceans, small fish |