The red tail giant gourami (Osphronemus laticlavius) is a stunning freshwater fish known for its large size and striking coloration. Here’s some key information about it:
 
Description:
 
    •    Appearance: It is characterized by its vibrant red or orange tail and fins, with a body that ranges from silvery-gray to brownish as it matures. Juveniles often have more muted colors.
    •    Size: One of the largest gourami species, it can grow up to 20–28 inches (50–70 cm) in length in the right conditions.
    •    Lifespan: They can live for up to 10–20 years with proper care.
 
Habitat and Distribution:
 
    •    Native Region: Found in Borneo and Sumatra, primarily in slow-moving rivers and swampy areas.
    •    Water Preferences: They prefer warm, slightly acidic to neutral water with temperatures between 22–28°C (72–82°F).
 
Care in Aquariums:
 
    •    Tank Size: Requires a very large tank, at least 250–300 gallons, due to its size and activity level.
    •    Diet: Omnivorous, feeding on a mix of vegetables (e.g., spinach, peas) and protein-based foods like insects, worms, and high-quality pellets.
    •    Temperament: Generally peaceful but can become territorial, especially in smaller spaces. Suitable tankmates include other large, non-aggressive fish.
 
Other Notes:
 
    •    Breeding: Challenging in captivity due to their size and space requirements. They build bubble nests for their eggs.
    •    Popularity: Sought after by advanced aquarists for its beauty and unique behavior.
 
Would you like more specific care tips or additional details about this fish?