Here are some examples:
* Tuna: These powerful fish are covered in scales and have fins that help them swim incredibly fast.
* Salmon: These iconic fish have scales and fins that help them migrate long distances between freshwater and saltwater.
* Groupers: These large fish have thick scales and powerful fins for hunting.
* Clownfish: These colorful fish have scales and fins that help them navigate coral reefs.
* Sharks: Although they don't have typical scales, sharks have placoid scales, which are tiny, tooth-like structures that cover their skin. Sharks also have fins for swimming and maneuvering.
The only saltwater fish that don't have scales are some species of eels, which have smooth, slimy skin instead.
So, the next time you see a saltwater fish, look closely and you'll probably find both fins and scales!