Ceviche (Marinated Fish)

1 3/4 lbs tilapia fillets (chopped into small cubes. or 1 3/4 lbs substitute shrimp or 1 3/4 lbs use a combination of fish and ) or 1 3/4 lbs other white fish[...]

2 lbs fish fillets (such as flounder, sole, or red snapper) salt , to taste 1 cup fresh lime juice (about 12 limes) 1/2 teaspoon salt 1 small garlic clove ,[...]

1 lb white fish fillet (or a mixture of white and shell fish) 3 -4 limes, juice of or 3 -4 lemons, juice of 1 red onion , thinly sliced 1 large tomato ,[...]