Ceviche with cucumber

itemscope itemtype="http://data-vocabulary.org/RecipeIngredient"> 3/4 pound very fresh boneless, skinless halibut or sea bass, cut into 1/4-in. to 1/2-in.[...]

1/2 cup fresh lime juice 2 tablespoons fresh lime juice 1 lb shrimp (ideally 41/50 count to a pound) 1/2 cup white onion, chopped into 1/4 inch pieces 1/3 cup[...]

1/2 cup fresh lime juice 2 tablespoons fresh lime juice 1 lb unpeeled shrimp 1/2 medium white onion 1/3 cup chopped fresh cilantro 1/2 cup ketchup 1 -2[...]

1 lb halibut 1/4 lb shrimp 4 lemons 2 garlic cloves 1 small onion 1/2 cucumber 1 hot pepper, chopped fine 2 tablespoons chopped parsley 2 tablespoons chopped[...]

1/2 lb scallops , sliced very thin 1/2 lb flounder, sliced very thin 1/4 lb shrimp , sliced very thin 1 plum tomato , peeled seeded small dice 1/4 cucumber ,[...]