Ceviche with tomatoes

1 1/2 lbs fresh sea bass (saltwater fish, cut into 1-inch cubes) or 1 1/2 lbs red snapper (saltwater fish, cut into 1-inch cubes) or 1 1/2 lbs shrimp[...]

2 cups white fish fillets, finely chopped (any meaty white fish will do) 1/2 cup lime juice , strained 1 cup carrot , lightly cooked and cut into strips 1 cup[...]