Description
Black Ohm Betta (From Thailand)
(Betta splendens – OHM Line: One Heart Magic)
📌 Basic Info
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Scientific Name: Betta splendens (OHM – One Heart Magic Line)
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Common Name: Black Ohm Betta
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Size: ~2.5 – 3 inches (6 – 7.5 cm)
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Lifespan: 3 – 5 years (with good care)
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Tank Zone: Mostly surface to mid-level
🌊 Water Parameters
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TDS: 100 – 200 ppm
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pH: 6.0 – 7.2
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Temperature: 25°C – 28°C (77°F – 82°F)
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Water Type: Freshwater (soft, stable conditions)
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Hardness: GH 3–6, KH 2–4
✨ Characteristics
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Originated from Thailand, selectively bred under the OHM (One Heart Magic) line.
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Striking jet-black body and fins, giving a bold and dramatic look.
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Wide tail spread with strong finnage – a signature of the OHM line.
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Labyrinth fish – can breathe atmospheric oxygen.
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Highly prized for its solid dark coloration, often used in betta competitions.
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Clean water is crucial to keep fins healthy and glossy.
🍽 Food
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Type: Carnivorous (micro-predator)
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Diet: High-quality betta pellets, frozen bloodworms, brine shrimp, daphnia, mosquito larvae.
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Feeding Frequency: 1–2 times daily, small portions (avoid overfeeding).
🛠 Maintenance
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Weekly water changes: 20–30% (to maintain dark sheen and fin health).
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Gentle filtration (bettas dislike strong currents).
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Provide hiding areas and plants for comfort.
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Heater required to maintain tropical temperature.
🤝 Social Behavior
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Minimum Group Size: Single (males are aggressive and territorial).
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Tank Mates: Peaceful, calm species like corydoras, small rasboras, kuhli loaches, nerite snails, and shrimp (with caution).
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Avoid: Other male bettas, aggressive fish, or fin-nipping species (barbs, guppies).
✅ Do’s
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Keep in at least a 10–15L tank (bigger is better).
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Use dark backgrounds and lighting to enhance black coloration.
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Provide protein-rich diet for strong fins and vibrant look.
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Maintain stable warm water with low current.
❌ Don’ts
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Don’t keep with other males.
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Don’t house with fin-nipping or aggressive fish.
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Don’t let water quality drop (affects color and health).
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Don’t overfeed (causes bloating and poor water quality).
⚡ Quick Tips
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A rare and striking Thai OHM betta variety, admired for its deep, solid black appearance.
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Looks stunning as a solo showpiece fish in aquascaped tanks.
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OHM (One Heart Magic) line ensures wide tail spread and strong finnage.
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Popular with collectors and betta breeders worldwide.