Glo Cosmic Blue Danio (Danio rerio sp.) for Sale in Canada

The Glo Cosmic Blue Danio (Danio rerio sp.) is a beautiful fluorescent freshwater schooling fish known for its brilliant glowing blue colouration and energetic swimming behaviour. This eye-catching variety is developed from the popular Zebra Danio and combines the natural hardiness of Danio rerio with an intense cosmic blue appearance.

With their electric blue glow, peaceful personality, and easy-care requirements, Glo Cosmic Blue Danios are an excellent choice for freshwater community aquariums, planted tanks, and colourful nano setups. Their active schooling behaviour creates constant movement and a stunning visual display.

Monster Aquarium Canada proudly offers healthy Glo Cosmic Blue Danio (Danio rerio sp.) with professional live aquatic animal shipping throughout Canada.

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Why Choose Glo Cosmic Blue Danio?

Brilliant Fluorescent Blue Aquarium Fish

Glo Cosmic Blue Danios are popular among aquarists for their:

Unique Features

Premium Characteristics

• Bright fluorescent blue colouration
• Active schooling behaviour
• Peaceful community temperament
• Extremely hardy freshwater species
• Beginner-friendly care
• Excellent planted aquarium fish
• Fast and playful swimmers
• Ideal for colourful aquarium displays

Their glowing blue appearance creates a beautiful contrast against plants, dark backgrounds, and natural aquarium décor.

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Care Requirements

Aquarium Size

A minimum 10-gallon aquarium is recommended for a small group. Larger aquariums are preferred because they provide additional swimming space and encourage natural schooling behaviour.

Recommended aquarium setup:

• Quality filtration
• Open swimming areas
• Live aquatic plants
• Driftwood
• Smooth rocks
• Secure aquarium lid
• Moderate water flow

Glo Cosmic Blue Danios are active swimmers that enjoy exploring the upper and middle areas of the aquarium.

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Water Parameters

• Scientific Name: Danio rerio sp.
• Common Name: Glo Cosmic Blue Danio
• Available Size: Juvenile/Adult aquarium size
• Adult Size: Approximately 2–2.5 inches (5–6 cm)
• Temperature: 18–26°C (64–79°F)
• pH: 6.5–7.8
• GH: 5–15 dGH
• KH: 3–10 dKH
• Care Level: Easy
• Temperament: Peaceful
• Diet: Omnivore
• Swimming Level: Top and middle levels
• Lifespan: Approximately 3–5 years

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Feeding Your Glo Cosmic Blue Danio

Glo Cosmic Blue Danios are easy-to-feed omnivores and accept a wide variety of foods.

Recommended Foods

• Premium tropical flakes
• Micro pellets
• Frozen brine shrimp
• Frozen bloodworms
• Daphnia
• Small live foods
• Colour-enhancing fish foods

A balanced diet helps maintain vibrant colour, strong growth, and active behaviour.

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Ideal Aquarium Setup

Glo Cosmic Blue Danios thrive in planted freshwater aquariums.

Recommended Features

• Java Fern
• Anubias
• Java Moss
• Floating plants
• Driftwood
• Smooth rocks
• Dark substrate
• Moderate water movement

Green plants and darker aquarium backgrounds help highlight their fluorescent blue glow.

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Compatible Tank Mates

Glo Cosmic Blue Danios are peaceful schooling fish suitable for community aquariums.

Suitable companions include:

• Neon Tetras
• Cardinal Tetras
• Harlequin Rasboras
• Corydoras
• Otocinclus
• Guppies
• Platies
• Mollies
• Small Gouramis
• Nerite Snails

Avoid:

• Large predatory fish
• Aggressive cichlids
• Large catfish
• Fish large enough to eat them

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Schooling Behaviour

Glo Cosmic Blue Danios should be kept in groups to encourage natural activity.

Recommended Group Size

• Minimum: 6 fish
• Ideal: 8–12+ fish

A larger school creates a more impressive glowing blue aquarium display.

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Breeding

Like traditional Zebra Danios, Glo Cosmic Blue Danios are egg scatterers and can breed in freshwater.

Breeding Tips

• Use a separate breeding aquarium
• Add spawning mops or fine-leaved plants
• Feed conditioning foods before breeding
• Remove adults after spawning

Eggs hatch quickly, and fry require specialized nutrition.

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Why Buy Glo Cosmic Blue Danio from Monster Aquarium Canada?

Premium Healthy Aquarium Fish

Every Glo Cosmic Blue Danio is selected for:

• Bright fluorescent blue colour
• Active swimming behaviour
• Strong body condition
• Peaceful community compatibility
• Premium aquarium quality

Professional Live Shipping Across Canada

Monster Aquarium Canada carefully packages every fish using professional live aquatic animal shipping methods to help ensure safe arrival throughout Canada.

Canada’s Trusted Aquarium Supplier

Monster Aquarium Canada specializes in premium freshwater fish, rare fish, monster fish, freshwater shrimp, crayfish, aquarium snails, aquatic plants, fish foods, medications, and aquarium supplies for Canadian aquarium hobbyists.

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Frequently Asked Questions

1. Are Glo Cosmic Blue Danios beginner-friendly?

Yes. They are extremely hardy freshwater fish and are ideal for beginner aquarium keepers.

2. How many Glo Cosmic Blue Danios should I keep?

A minimum group of 6 fish is recommended, although larger schools provide better natural behaviour.

3. Do Glo Cosmic Blue Danios need special aquarium care?

No. They require the same simple care as regular Zebra Danios.

4. Can Glo Cosmic Blue Danios live in planted tanks?

Yes. They are excellent planted aquarium fish and enjoy swimming through open spaces among plants.

5. Does Monster Aquarium Canada ship Glo Cosmic Blue Danios?

Yes. Monster Aquarium Canada provides professional live aquatic animal shipping across Canada to help ensure your fish arrive healthy and ready for your aquarium.