Spotfin Betta (Macrostoma Male (IB529))

Macrostoma Male (IB529) is a premium wild-type Betta macrostoma, admired for its rich red coloration, bold black banding, and elegant elongated body. A true collector’s species from Borneo, this male is ideal for experienced aquarists seeking rarity and authenticity.

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🔴 Species Overview

• Scientific Name: Betta macrostoma

• Code: IB529

• Gender: Male

• Origin: Brunei / Northern Borneo

• Type: Wild Betta (Paternal Mouthbrooder)

Often referred to as one of the crown jewels of wild bettas, Betta macrostoma is highly valued for its natural red tones and refined structure.

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✨ Key Characteristics

• Deep red to orange-red base coloration

• Distinct dark banding across body and fins

• Elongated, torpedo-shaped wild body form

• Large mouth adapted for paternal mouthbrooding

• Calm but territorial temperament

• More subtle and elegant display compared to ornamental Betta splendens

During courtship or display, males intensify in color and posture, showing their full beauty.

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📏 Size & Lifespan

• Adult Size: 8–10 cm

• Lifespan: 4–6 years with optimal care

• Slower maturation than ornamental bettas

• Full coloration develops under stable blackwater conditions

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💧 Ideal Water Conditions

This species requires soft, acidic water to remain healthy:

• Temperature: 24–27°C

• pH: 4.5–6.5

• Hardness: 0–5 dGH (very soft water recommended)

• TDS: Low (RO water commonly used)

• Filtration: Gentle sponge filter

• Water Flow: Minimal

• Water Change: 20–30% weekly

• Use botanicals such as Indian almond leaves and driftwood

Stability is critical—wild bettas are sensitive to rapid parameter changes.

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🌿 Recommended Aquarium Setup

• Minimum Tank Size: 40 liters (single male)

• Larger tank recommended for breeding pair

• Blackwater biotope style preferred

• Dim lighting enhances red coloration

• Leaf litter and natural driftwood for cover

• Fine sand substrate

• Dense plants or shaded areas

• Tight-fitting lid required (excellent jumper)

A calm, tannin-rich environment closely mimics their natural peat swamp habitat.

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🐟 Tank Mates Compatibility

• Best kept alone or as a compatible pair

• Can coexist with small peaceful blackwater species

• Avoid aggressive or highly active fish

• Not suitable for busy community aquariums

They thrive in quiet setups with minimal disturbance.

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🍽 Feeding Habit

• Carnivorous species

• Prefers live or frozen foods:

  • Blackworms

  • Mosquito larvae

  • Bloodworms

  • Brine shrimp

• May accept soft premium pellets with training

• Feed once or twice daily in small portions

• Remove uneaten food promptly

High-protein diet supports vibrant coloration and breeding readiness.

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🧬 Breeding Information

• Paternal mouthbrooder

• Male incubates eggs for approximately 14–21 days

• Requires stress-free environment during brooding

• Fry are relatively large and accept baby brine shrimp

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🌟 Why Choose Macrostoma Male (IB529)?

• Rare and highly collectible wild betta species

• Deep natural red coloration

• Elegant elongated body structure

• Strong breeding potential

• Premium collector-grade specimen

Macrostoma Male (IB529) is an exceptional addition for serious wild betta enthusiasts who appreciate rarity, genetics, and the natural beauty of true blackwater species.