Bright scarlet gills/bright pink or red on a fish mean it’s freshly caught. A dull color is old fish. A red dye is often applied to the gills to make appear fresh, so beware.
Softness/mushy means fish is old, a hard form means freshness. Finger tips shouldn’t leave an impression. Old Fishes are sometimes frozen to make it hard, to misled people.
Rotten fish have foul Smell. While selling in heaps rotten fishes are often mixed with fresh ones.
TEXTURE AND SHINE
The skin should be shiny and moist. No brown Spots. It shows the sign of decay. Must have an appearance of a live fish. A dull looking fish means OLD.
COLOUR OF THE SLICES
When buying fillets look for neat, trim fillets with white translucent appearance.
Look for CLEAR bright, glossy and dark eyes and sunken, red or cloudy white eyes are not good.
FOR CRABS & LOBSTERS
Fresh crabs and lobsters should be lively and frisky. Should be heavy for their size.
Select shell fish tightly closed without any gaps/cracks.
AROMA OF COOKED FISH
Fresh fish when cooked have a rich aroma, if fried or grilled the inside flesh would be bright white.