Super Blue Kerri Tetra (Inpaichthys kerri 'Super Blue') is a selectively bred variant of the Blue Emperor Tetra, prized for its intensely vibrant sapphire-blue coloration and peaceful temperament. 

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Species Overview

• Scientific Name: Inpaichthys kerri (Super Blue variant)
• Common Names: Super Blue Kerri Tetra, Super Blue Emperor Tetra, False Royal Tetra
• Origin: Aripuanã River, upper Madeira Basin, Brazil
• Size: 1.5–2 inches (3.5–5 cm)
• Lifespan: 3–5 years
• Temperament: Peaceful, shoaling

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Appearance

• Coloration: Metallic, electric blue body with subtle violet or purple hues
• Sexual Dimorphism:
  • Males: More vibrant, slimmer, blue adipose fin
  • Females: Slightly rounder, reddish adipose fin

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Natural Habitat

• Native to slow-moving, tannin-rich tributaries with soft, acidic water
• Waters are often tea-colored due to decaying leaf litter
• Mimic with driftwood, leaf litter, and subdued lighting

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Tank Setup

• Tank Size: Minimum 15–20 gallons for a group of 6+
• Substrate: Dark sand or fine gravel
• Decor: Driftwood, Indian almond leaves, alder cones, live plants
• Lighting: Low to moderate (floating plants help diffuse light)
• Water Parameters:
  • Temperature: 72–80°F (22–27°C)
  • pH: 5.5–6.9
  • Hardness: 3–5 dGH
  • TDS: 80–100 ppm

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Diet

• Type: Omnivore
• Preferred Foods:
  • High-quality flakes and micro pellets
  • Frozen/live foods: brine shrimp, daphnia, bloodworms
  • Spirulina flakes for fiber and color enhancement

Tank Mates

• Ideal with:
  • Other peaceful tetras
  • Rasboras
  • Corydoras
  • Small dwarf cichlids (e.g., Apistogramma)
• Avoid:
  • Large or aggressive fish
  • Fin-nippers or overly active species

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Breeding

• Spawning: Egg scatterers
• Conditions:
  • Soft, acidic water
  • Dense plants or spawning mops
• Fry Care:
  • Remove adults post-spawning
  • Feed fry infusoria, then baby brine shrimp

 

Super Blue Kerri Tetra (Inpaichthys kerri)