Cobalt Blue Goby

🐟 Cobalt Blue Goby (Cobalt Blue Goby)

Add intense colour and fascinating behaviour to your aquarium with the striking Cobalt Blue Goby. This eye-catching freshwater goby is known for its vivid electric blue coloration (especially in males), paired with its unique grazing and rock-clinging behaviour.

Peaceful, active, and highly specialised, Cobalt Blue Gobies are perfect for aquarists looking to create a dynamic, river-style aquarium with high flow and natural surfaces.

🌿 Why Choose Cobalt Blue Gobies?

🔵 Brilliant cobalt blue coloration (males)
🐟 Unique grazing and clinging behaviour
🌿 Ideal for river-style and high-flow aquariums
🧼 Natural algae and biofilm grazer
⭐ Rare and visually striking species

These gobies spend their time attached to rocks and glass, grazing on biofilm and algae, and darting between surfaces with agility.

📏 Care Requirements

🧬 Scientific Name: Stiphodon semoni
📛 Common Name: Cobalt Blue Goby
🏠 Tank Size: 60L+ recommended
📏 Adult Size: ~5–6 cm
🌡️ Temperature: 22–26°C
⚗️ pH Range: 6.5–7.5
🧘 Temperament: Peaceful
🍽️ Diet: Algae, biofilm, sinking foods, occasional frozen foods
👥 Group Size: 3–6+ recommended

Cobalt Blue Gobies thrive in mature aquariums with strong water flow, high oxygenation, smooth rocks, and plenty of grazing surfaces. A river-style setup is ideal.

🐠 Compatibility

Best suited to peaceful community aquariums with similar environmental needs. Suitable tank mates include hillstream loaches, small rasboras, and other non-aggressive species. Avoid aggressive fish or low-flow species.

⚠️ Important Notes

Cobalt Blue Gobies require well-established aquariums with natural algae and biofilm growth. They are sensitive to poor water quality and need high oxygen levels. A secure lid is recommended, as they can climb and may escape.

The Cobalt Blue Goby is a fantastic choice for UK aquarists wanting a vibrant, unusual, and highly engaging fish that thrives in a natural, high-flow environment.