Yes ...
The dish is typically made from fresh raw fish cured in citrus juices, such as lemon or lime, and spiced with ají or chili peppers. Additional seasonings, such as chopped onions, salt, and cilantro, may also be added. We filleted some walleye cut up into smaller pieces and let it sit for a few hours in lime juice which actually cooks it, then added all the other ingredients... but like I said I think you should only try it with salt water fish ...