Pacific blue-eye rainbow fish

🐟 Pacific Blue-Eye Rainbowfish Care Overview

🧬 Species Info

• Common Name: Pacific Blue-Eye
• Scientific Name: Pseudomugil signifer
• Family: Pseudomugilidae
• Origin: Eastern Australia, coastal streams and estuaries
• Size: 1.5–2 inches (3.5–5 cm)
• Lifespan: 3–5 years
• Temperament: Peaceful, active, shoaling

🌊 Tank Requirements

• Tank Size: 10 gallons minimum (larger preferred for groups)
• Temperature: 68–78°F (20–26°C)
• pH: 6.5–8.0
• Hardness: Moderate (they tolerate a wide range)
• Salinity: Can tolerate low-end brackish water
• Lighting: Moderate to high (shows off iridescence)
• Substrate: Sand or fine gravel
• Decor: Planted tanks with open swimming space and gentle flow

🐠 Behavior & Compatibility

• Group Size: Best in groups of 6 or more
• Tankmates:
• Peaceful nano fish (e.g., rasboras, small tetras, Corydoras)
• Avoid fin-nippers or large aggressive species
• Males display to each other and to females with vibrant fin extensions and shimmering dances

🍽 Diet

• Type: Omnivore (micro-predator)
• Staple Foods:
• Micro pellets
• Crushed flake food
• Frozen/live foods (baby brine shrimp, daphnia, mosquito larvae)
• Spirulina or veggie-rich foods enhance color and digestion

🐣 Breeding

• Spawning Style: Egg scatterer
• Behavior: Males perform courtship dances; females lay small numbers of adhesive eggs daily
• Spawning Setup: Fine-leaved plants or spawning mops
• Fry Care: Very tiny fry require infusoria or powdered fry food initially

🎨 Appearance

• Body: Translucent silver/gold with reflective scales
• Eyes: Vivid blue, iridescent — their most striking feature
• Fins: Males have longer, more ornate fins, often with yellow or white highlights