How long does fish stay good in the fridge?

Raw fish and shellfish should be kept in the refrigerator (40 °F/4.4 °C or less) only 1 or 2 days before cooking or freezing. After cooking, store seafood in the refrigerator for 3 to 4 days. Any frozen fish or shellfish will be safe indefinitely; however, the flavor and texture will lessen after lengthy storage.

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How can you tell if fish is spoiled?

Some common characteristics of bad fish are a slimy, milky flesh (a thick, slippery coating) and, in general, a fishy odor. This can be hard to determine because fish is smelly and slick by nature, but these traits become much more noticeable when the fish has spoiled. Fresh fish fillets will shine as if they just came out of water.

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