Pacific Blue-eye

🔥 Pacific Blue-eye (Pseudomugil signifer)
Add a flash of electric colour and constant motion to your aquarium with the vibrant Pacific Blue-eye. Pseudomugil signifer These stunning nano rainbowfish are known for their bright metallic blue eyes, shimmering silver-blue bodies, and energetic schooling behaviour. Small but full of personality, they are perfect for planted aquariums where their colours and movement can truly stand out.

Peaceful, hardy, and endlessly active, Pacific Blue-eyes bring a natural coastal-stream feel to aquascapes, especially in well-planted, lightly flowing setups.

🌿 Why Choose Pacific Blue-eye?
🎨 Bright metallic blue eyes with shimmering silver-blue body tones
🐠 Energetic, peaceful schooling nano fish
🌿 Perfect for planted, river-style, and natural aquascapes
⭐ Constant movement adds life to all levels of the tank
👀 Males display enhanced colouration during courtship

In a well-maintained aquarium, Pacific Blue-eyes school in lively groups, darting through plants and open water with flashes of blue that shift as they turn.

📏 Care Requirements
🧬 Scientific Name: Pseudomugil signifer
📛 Common Name: Pacific Blue-eye
🏠 Tank Size: 50L+
📏 Adult Size: ~3–5 cm
🌡️ Temperature: 20–26°C
⚗️ pH Range: 6.5–8.0
🧘 Temperament: Peaceful
🍽️ Diet: Micro pellets, flakes, daphnia, baby brine shrimp
👥 Group Size: 8–12+ recommended

Pacific Blue-eyes thrive in clean, well-oxygenated water with gentle flow and plenty of fine-leaved plants or mosses.

🐠 Compatibility
Ideal for peaceful community aquariums with small tetras, rasboras, Corydoras, and other non-aggressive species. They also pair well with other nano fish in species-only displays.

⚠️ Important Notes
Best coloration and natural behaviour are seen in larger groups with stable water conditions. Males may display mild sparring, but this is harmless and part of natural behaviour.

A fantastic choice for UK aquarists wanting a colourful, active nano fish that brings shimmer, energy, and natural movement to planted aquariums.