The Sumatra Tiger Fish, also known as Datnioides pulcher, is a freshwater fish that belongs to the Datnioididae family. Here's some information about the Sumatra Tiger Fish and its general lifestyle:

1. Appearance:

   • The Sumatra Tiger Fish has a distinctive appearance with its silver body adorned with dark vertical stripes, resembling a tiger's pattern. As they mature, the intensity of the stripes may vary.
   • They have a slightly elongated and laterally compressed body.

2. Size:

   • These fish can grow to a significant size, often reaching lengths of 12 to 16 inches (30 to 40 cm) or more in captivity.

3. Habitat:

   • Originating from the freshwater rivers and streams of Southeast Asia, Sumatra Tiger Fish are found in countries like Indonesia, Malaysia, and Thailand.
   • They inhabit slow-moving or still waters with sandy or muddy bottoms.

4. Tank Requirements:

   • Sumatra Tiger Fish require a spacious aquarium due to their size and swimming behavior. A tank of at least 75 gallons or more is recommended.
   • Provide hiding spots and structures like caves and driftwood.
   • Maintain good water quality with a neutral to slightly acidic pH (around 6.5 to 7.5).

5. Water Conditions:

   • Keep the water temperature between 75°F to 82°F (24°C to 28°C).
   • Provide a filtration system to ensure clean water and strong water flow, mimicking their natural habitat.

6. Diet:

   • Sumatra Tiger Fish are carnivorous and prefer a diet of live or frozen foods. This can include small fish, shrimp, worms, and other meaty offerings.
   • They may be hesitant to accept dry or processed foods initially, so a varied diet is crucial.

7. Behavior:

   • These fish are known for their active and sometimes aggressive behavior, especially during feeding.
   • They are best kept with other fish of similar size and temperament.

8. Compatibility:

   • Avoid keeping Sumatra Tiger Fish with smaller or more timid tankmates, as they may view them as prey.