Emerald Dwarf Rasbora (Celestichthys erythromicron) for Sale in Canada

The Emerald Dwarf Rasbora (Celestichthys erythromicron) is a beautiful and highly sought-after nano freshwater fish known for its shimmering emerald-blue body, dark vertical bars, orange-red accents, and peaceful schooling behaviour. Native to Lake Inle and surrounding freshwater habitats in Myanmar, this tiny species is an excellent choice for planted nano aquariums and peaceful community tanks.

Sometimes called the Emerald Dwarf Danio or Emerald Rasbora, this miniature species delivers exceptional colour despite its small size. A group moving through dense aquatic plants creates a fascinating natural display.

Monster Aquarium Canada proudly offers healthy Emerald Dwarf Rasbora (Celestichthys erythromicron) with professional live fish shipping throughout Canada.

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Why Choose Emerald Dwarf Rasbora?

A Stunning Nano Schooling Fish

Emerald Dwarf Rasboras are prized for their:

Unique Features

Premium Characteristics

• Shimmering emerald-blue body
• Distinctive dark vertical bars
• Orange-red coloration on the fins
• Compact nano size
• Peaceful temperament
• Active schooling behaviour
• Excellent planted aquarium fish
• Beautiful natural appearance

Their contrasting blue, green, orange, and dark markings make them particularly attractive against a planted aquarium background.

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Care Requirements

Aquarium Size

A 10-gallon aquarium can accommodate a small group, while 15–20 gallons or larger is recommended for a larger school and a more stable environment.

Recommended aquarium setup:

• Mature biological filtration
• Gentle water flow
• Dense aquatic plants
• Mosses and fine-leaved plants
• Driftwood
• Open swimming areas
• Dark substrate
• Secure aquarium lid

Because of their tiny size, avoid strong filtration currents that can overwhelm them.

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Water Parameters

• Scientific Name: Celestichthys erythromicron
• Common Name: Emerald Dwarf Rasbora
• Also Known As: Emerald Dwarf Danio
• Adult Size: Approximately 1 inch (2.5 cm)
• Temperature: 20–26°C (68–79°F)
• pH: 6.5–7.5
• GH: 5–15 dGH
• KH: 3–10 dKH
• Care Level: Moderate
• Temperament: Peaceful
• Diet: Omnivore/micro-predator
• Swimming Level: Middle levels
• Lifespan: Approximately 3–5 years

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Feeding Your Emerald Dwarf Rasbora

Because of their small mouths, Emerald Dwarf Rasboras need appropriately sized foods.

Recommended Foods

• High-quality nano pellets
• Crushed tropical flakes
• Baby brine shrimp
• Daphnia
• Cyclops
• Microworms
• Grindal worms
• Small frozen foods

Offer small portions several times a day when possible rather than a single large feeding.

A varied diet helps maintain their brilliant coloration and supports healthy growth.

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Ideal Aquarium Setup

A heavily planted nano aquarium is perfect for Emerald Dwarf Rasboras.

Recommended Features

• Java Moss
• Christmas Moss
• Anubias
• Bucephalandra
• Cryptocoryne
• Fine-leaved aquatic plants
• Floating plants
• Driftwood
• Dark sand or fine gravel

Plants provide security while creating plenty of natural surfaces for exploring and feeding.

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Compatible Tank Mates

Emerald Dwarf Rasboras are peaceful but very small, so their tank mates should be carefully selected.

Suitable companions include:

• Celestial Pearl Danios
• Chili Rasboras
• Other small rasboras
• Ember Tetras
• Pygmy Corydoras
• Otocinclus
• Amano Shrimp
• Neocaridina Shrimp
• Nerite Snails

Avoid:

• Large predatory fish
• Large cichlids
• Aggressive fish
• Fin-nipping species
• Large, fast-moving community fish

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Behaviour

Emerald Dwarf Rasboras are active and social nano fish.

Natural Behaviour

• Best kept in groups of 8 or more
• Explore plants and aquarium décor
• Males may display to females
• Peaceful toward suitable tank mates
• Become more confident in larger groups

A larger school provides a much more impressive display and allows the fish to exhibit natural social behaviour.

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Breeding

Emerald Dwarf Rasboras are egg scatterers and may breed in mature planted aquariums.

Breeding Tips

• Condition adults with small live and frozen foods
• Provide Java Moss or other fine-leaved plants
• Maintain stable water conditions
• Separate fry when possible
• Feed newly hatched fry appropriately sized microscopic foods

A densely planted aquarium can provide natural protection for eggs and fry.

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Why Buy Emerald Dwarf Rasbora from Monster Aquarium Canada?

Premium Healthy Aquarium Fish

Every Emerald Dwarf Rasbora is carefully selected for:

• Vibrant natural coloration
• Healthy body condition
• Active behaviour
• Strong swimming ability
• Premium aquarium quality

Professional Live Fish Shipping Across Canada

Monster Aquarium Canada professionally packages live fish using trusted shipping methods to help ensure safe arrival throughout Canada.

Canada’s Trusted Aquarium Supplier

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

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Frequently Asked Questions

1. Are Emerald Dwarf Rasboras suitable for beginners?

They can be kept by beginners, but their tiny size and specific feeding requirements make them better suited to aquarists who can maintain stable water conditions.

2. How large do Emerald Dwarf Rasboras grow?

Adults generally reach approximately 1 inch (2.5 cm).

3. How many Emerald Dwarf Rasboras should I keep?

A group of 8 or more is recommended. Larger groups generally display more natural and confident behaviour.

4. Can Emerald Dwarf Rasboras live with shrimp?

Yes. They are generally compatible with adult Amano and Neocaridina shrimp. Very small shrimp fry may occasionally be eaten.

5. Does Monster Aquarium Canada ship Emerald Dwarf Rasboras across Canada?

Yes. Monster Aquarium Canada offers professional live fish shipping throughout Canada, helping ensure your Emerald Dwarf Rasboras arrive healthy and ready for their new aquarium.