1. Body Shape: Male tiger fish have a more streamlined, elongated body shape, while females are more rounded.
2. Dorsal Fin: The dorsal fin of a male tiger fish is usually larger and more pointed than that of a female.
3. Anal Fin: The anal fin of a male tiger fish is usually shorter and more rounded than that of a female.
4. Coloration: Male tiger fish are often more brightly colored than females, with a more vibrant green or blue body and more visible stripes.
5. Size: Male tiger fish can grow larger than females, reaching lengths of up to 4 feet, while females typically reach a maximum length of around 3 feet.
In addition, mature males may also develop tubercles on the head and fins, and they may also have larger and more pointed canine teeth.