Leviticus 11 on fish, shellfish and water creatures
Water creatures are clean only with both fins and scales. Shellfish, crustaceans, squid, eel and catfish lack scales and are not eaten.
Leviticus 11:9-12
How this shows up in a verdict
When the Biblically clean lens is selected and a product’s label touches fish, shellfish and water creatures, the verdict cites this record. The verdict reads “not permitted” and names the ingredient.
Hey Kosher summarizes published positions so shoppers can see the reasoning behind a verdict. It is not a halakhic authority; the cited body has the final word.