Redfish are the big brawny cousin of speckled trout. They have tougher scales that are as large and thick as your thumbnail, as well as thicker gill plates that allow them to tolerate dirty water and they can live in completely fresh water.

Do red fish have scales?

As seen on most fish in supermarket, such as salmon, bass, red snapper and so on, fish scales are very common. The outer body of fish is covered with scales, which are part of the fish's integumentary system. ... Agassiz, a Swiss palaeontologist, was the first one to use fish scales for taxonomy.

Is red fish kosher?

For example, “red snapper” is generally known as a kosher fish. ... The same goes for cod and escolar, some types of these fish are non-kosher.