🧬 Origins and Classification
Scientific Name: Trichopodus trichopterus (Opaline variety)
Family: Osphronemidae
The Opaline Gourami is a beautifully patterned freshwater fish developed from the classic Three-Spot Gourami. Known for its swirling blue-gray marbling and calm nature, the Opaline Gourami is a favorite among aquarists who want a hardy, peaceful, and visually striking centerpiece fish. Its ability to adapt to different water conditions makes it suitable for beginners and experienced hobbyists alike.
🎨 Appearance
The Opaline Gourami stands out because of its elegant marbled pattern and long, flowing fins.
Color & Features:
- Blue, silver, and gray marbled body
- Long ventral “feelers” used for sensing surroundings
- Rounded body with extended dorsal and anal fins
- Males show brighter color and slightly longer fins
Size:
- Average: 5–6 inches
- Lifespan: 4–6 years with proper care
🏡 Tank Requirements
Tank Size: Minimum 30 gallons; larger tanks preferred for pairs or community setups.
Water Parameters
- Temperature: 75–82°F (24–28°C)
- pH: 6.5–7.5
- Hardness: Soft to moderately hard
Environment Setup
To help the Opaline Gourami thrive, create a calm, well-decorated habitat.
Include:
- Live plants for cover
- Floating plants for shade
- Smooth driftwood or rocks
- Gentle water flow
- Open areas for slow, graceful swimming
The Opaline Gourami prefers peaceful surroundings and stable water conditions.
🍽️ Diet
Type: Omnivore
Food Options:
- High-quality flakes or pellets
- Frozen or live foods (brine shrimp, bloodworms, daphnia)
- Occasional vegetable-based foods (spirulina flakes, blanched greens)
Feed moderate amounts once or twice per day.
🤝 Behavior and Compatibility
The Opaline Gourami is generally peaceful, although males can be mildly territorial, especially in smaller tanks.
Ideal Tank Mates:
- Tetras
- Rasboras
- Corydoras
- Rainbowfish
- Mollies and platies
- Peaceful barbs
Avoid:
- Aggressive species
- Known fin-nippers (tiger barbs, serpae tetras)
- Other gourami males in small tanks
They do especially well in planted community aquariums.
💡 Care Notes
The Opaline Gourami has a labyrinth organ, which allows it to breathe atmospheric air, so it appreciates a warm, humid air layer above the tank. Weekly partial water changes help maintain water clarity and support immune health. A peaceful environment allows their marbled pattern to display beautifully.
Graceful, hardy, and visually stunning, the Opaline Gourami is a wonderful addition to any calm freshwater community tank.