• Full, clear, bright eyes
• Bright red or pink, clean gills.
• Fresh, mild odor.
• Shiny, brightly colored skin with tightly adhering scales.
• Firm flesh, elastic to the touch, clinging tightly to the bones.
• Proper display: on ice tables or in refrigerated units at 1-2 degrees Celsius (34-36 degrees Fahrenheit).

Purchase fish from a reliable kosher fish store, or only fish with skin on that they can personally identify.

The FDA warns that species substitution is a serious problem even from their perspective.