Can you use freshwater fish as bait in saltwater? The answer may surprise you.
Saltwater fish are a lot like humans. They need salt to survive. So, using freshwater fish as bait is like offering a human a cup of fresh water to drink. The fish will take a sip, then spit it out in disgust.
There are some exceptions, of course. Some freshwater fish can survive in saltwater for a short period of time. But they won’t be able to thrive. And they certainly won’t be able to reproduce.
So, if you’re fishing for saltwater fish, use saltwater fish as bait. It’s the only way to ensure a successful catch.