Blue Diamond Neon Tetra (Paracheirodon innesi var. "Blue Diamond")

The Blue Diamond Neon Tetra is the most intensely blue variety of the iconic Neon Tetra. Distinguished by its shimmering sapphire body and the unique “diamond” marking between the forehead and dorsal fin, this relatively new variant is still uncommon in the aquarium hobby. Hardy, peaceful, and dazzling in appearance, it makes an excellent choice for both beginners and experienced aquarists.

We are proud to offer premium-grade specimens at far lower prices than competitors—a chance to add this rare gem to your aquarium without breaking the bank!

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Behavior & Compatibility

Blue Diamond Neon Tetras are peaceful schooling fish that thrive in groups of 6 or more. They generally inhabit the top and middle levels of the water column, though they will explore the lower regions while feeding.

They do well with other small, non-aggressive species and can coexist with most peaceful invertebrates. Adult dwarf shrimp are usually safe, though small shrimp fry may be eaten.

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Care & Feeding

These tetras are tank-raised and adaptable, but they show their best coloration in soft, slightly acidic water enriched with tannins and leaf litter.

Diet should be varied for optimal health and color vibrancy:

• High-quality flakes and micro pellets

• Frozen or freeze-dried foods (bloodworms, daphnia, brine shrimp)

• Occasional meaty treats to enhance brilliance and energy

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What We Like About This Fish

• Brilliant sapphire-blue coloration with diamond marking

• Peaceful and community-friendly

• Active, schooling behavior perfect for planted aquariums

• Hardy and adaptable, suitable for all experience levels

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Recommended Tank Parameters

• Temperature: 68–82°F (20–27.7°C)

• pH: 5.5–7.0 (slightly acidic preferred)

• KH: 4–8 dKH

• Minimum Tank Size: 10 gallons (school of 6+)

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Care Guidelines

• Diet: Omnivorous – flakes, pellets, frozen/live foods

• Social Behavior: Peaceful, shoaling; keep in groups of 6+

• Origin: Tank-bred (native to South America)

• Adult Size: 1–1.5 in (2.5–3.8 cm)

• Purchase Size: 0.25–1 in (0.6–2.5 cm)

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✨ Brilliant, peaceful, and rare, the Blue Diamond Neon Tetra is a must-have for aquarists seeking a vibrant centerpiece in their planted community aquariums.