Everyone knows that fish is good for you. But it seems that many people are afraid of cooking fish at home. We eat twice as much fish in restaurants as at home. Buying, storing, and cooking fish isn't difficult; it just requires a little knowledge. Whole fish should look as they were just pulled from the water; bright eyes and firm flesh are signs of freshness. Fish fillets or steaks should be firm and bright looking, with no brown spots or discoloration.