Giant Ruby Red Gourami (Osphronemus septemfasciatus sp)

Giant Ruby Red Gourami — Osphronemus septemfasciatus sp.
Intelligence in a heavyweight body

The Giant Ruby Red Gourami is one of the most impressive freshwater giants you can keep. Thick-bodied, broad-headed, and built with authority, this Southeast Asian powerhouse combines mass with deep ruby-red coloration that intensifies as it matures. Under strong lighting, the red tones glow against its muscular frame, giving it a bold yet controlled presence in large aquariums.

Unlike many fish of similar size, giant gouramis are not hyper predators. They move slowly and deliberately, observing everything around them. Highly intelligent and interactive, they quickly recognize their keeper and often swim forward in anticipation of feeding. Their awareness and personality are what truly set them apart.

Reaching 20–28+ inches, this is a serious long-term commitment suited for large aquariums or indoor pond-style systems. Given space, they become confident and dominant without constant aggression.

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Aquarium Setup

• Minimum Tank Size: 300 gallons (larger strongly recommended for adults)

• Substrate: Sand or smooth gravel

• Flow: Low to moderate

• Décor: Open swimming space with sturdy décor along the perimeter

• Lighting: Moderate

• Cover: Tight-fitting lid required

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Tank Mates

Best with large, confident species:

• Large catfish

• Silver Dollars

• Datnoids

• Large peaceful cichlids

• Some arowana (space dependent)

Avoid small fish — they will be viewed as food. Avoid highly aggressive species that may cause territorial disputes.

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Water Parameters

• Temperature: 75–84°F (24–29°C)

• pH: 6.0–7.5

• Hardness: Soft to medium

• Filtration: Strong — heavy waste producer

• Water Quality: Stable and clean conditions are critical

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Diet

Omnivorous with strong appetite:

• High-quality pellets

• Shrimp and worms

• Leafy greens

• Occasional fruit