• Spotted Scat, Scatophagus argus, is a euryhaline subtropical fish widely distributed in Indian-Pacific waters. It occurs in two basic colour morphs which are called Green Scat and Ruby or Red Scat and lives in coastal muddy areas, including estuaries, mangroves, harbours, and the lower courses of rivers. It is an important aquaculture food fish with high economic value and is also a popular aquarium species due to its colourful appearance, hardiness, slow growth, and calm behaviour