Gertrude Rainbow (Pseudomugil gertrudae) for Sale in Canada
The Gertrude Rainbow (Pseudomugil gertrudae), also known as the Spotted Blue-Eye, is a stunning nano freshwater fish admired for its sparkling blue eyes, delicate golden body, and beautifully spotted transparent fins. Native to northern Australia and southern New Guinea, this peaceful schooling fish has become a favourite among aquascapers and nano aquarium enthusiasts.
Although small in size, Gertrude Rainbows display remarkable colour and fascinating courtship behaviour. Males extend their elegant fins and perform graceful display dances, making them one of the most entertaining nano fish to observe in a planted aquarium.
Monster Aquarium Canada proudly offers healthy Gertrude Rainbow (Pseudomugil gertrudae) with professional live fish shipping throughout Canada.
Why Choose Gertrude Rainbow?
A Beautiful Nano Fish for Planted Aquariums
Gertrude Rainbows are highly prized for their:
Unique Features
Premium Characteristics
- Brilliant electric blue eyes
- Transparent fins covered in attractive black spots
- Soft golden to silver body coloration
- Peaceful schooling behaviour
- Ideal for nano aquariums
- Excellent planted aquarium fish
- Active and entertaining swimmers
- Beautiful courtship displays
Their elegant appearance makes them a standout species in natural aquascapes.
Care Requirements
Aquarium Size
A minimum 10-gallon aquarium is suitable for a small group, while 20 gallons or larger is recommended for a larger school.
Recommended aquarium setup:
- Mature biological filtration
- Gentle water flow
- Dense live plants
- Floating plants
- Driftwood
- Open swimming space
- Dark substrate
- Secure aquarium lid
Keeping them in groups helps reduce stress and encourages natural schooling behaviour.
Water Parameters
- Scientific Name: Pseudomugil gertrudae
- Common Name: Gertrude Rainbow
- Also Known As: Spotted Blue-Eye
- Adult Size: Approximately 1.5 inches (4 cm)
- Temperature: 24–28°C (75–82°F)
- pH: 6.0–7.5
- GH: 2–10 dGH
- KH: 2–6 dKH
- Care Level: Easy
- Temperament: Peaceful
- Diet: Omnivore
- Swimming Level: Middle and upper levels
- Lifespan: Approximately 3–5 years
Feeding Your Gertrude Rainbow
Gertrude Rainbows thrive on a varied diet of small foods.
Recommended Foods
- Premium nano pellets
- High-quality micro flakes
- Frozen baby brine shrimp
- Frozen cyclops
- Daphnia
- Microworms
- Live baby brine shrimp
- Small insect-based foods
A varied diet promotes vibrant colours, healthy growth, and successful breeding.
Ideal Aquarium Setup
A densely planted aquarium closely resembles their natural habitat.
Recommended Features
- Java Moss
- Java Fern
- Bucephalandra
- Anubias
- Cryptocoryne
- Floating plants
- Driftwood
- Dark sand or fine gravel
Natural décor helps the fish feel secure while showcasing their striking colours.
Compatible Tank Mates
Gertrude Rainbows are peaceful and ideal for nano community aquariums.
Suitable companions include:
- Celestial Pearl Danios
- Chili Rasboras
- Ember Tetras
- Iriani Red Rainbow
- Red Neon Blue Eyed Rainbow
- Corydoras
- Otocinclus
- Amano Shrimp
- Neocaridina Shrimp
- Nerite Snails
Avoid:
- Large predatory fish
- Aggressive cichlids
- Fin-nipping species
- Large, fast-moving community fish
Behaviour
Gertrude Rainbows are active, social, and peaceful.
Natural Behaviour
- Prefer schools of 6 or more
- Constant active swimmers
- Males display extended fins during courtship
- Peaceful with compatible tank mates
- Occupy the middle and upper aquarium levels
A larger school results in more natural behaviour and more frequent display activity.
Breeding
Gertrude Rainbows are egg scatterers and can breed readily under the right conditions.
Breeding Tips
- Feed adults live and frozen foods
- Use spawning mops or fine-leaved plants
- Maintain excellent water quality
- Collect eggs regularly
- Feed fry infusoria followed by baby brine shrimp
With stable conditions, healthy adults may spawn regularly.
Why Buy Gertrude Rainbow from Monster Aquarium Canada?
Premium Healthy Aquarium Fish
Every Gertrude Rainbow is carefully selected for:
- Bright blue eyes
- Healthy body condition
- Active swimming behaviour
- Strong genetics
- Premium aquarium quality
Professional Live Fish Shipping Across Canada
Monster Aquarium Canada professionally packages every 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.
Frequently Asked Questions
1. Are Gertrude Rainbows suitable for beginners?
Yes. They are hardy, peaceful, and an excellent choice for beginners with a mature planted aquarium.
2. How large do Gertrude Rainbows grow?
Adults typically reach 1.5 inches (4 cm).
3. How many Gertrude Rainbows should I keep?
For the best schooling behaviour and colour display, keep at least six fish, with larger groups preferred.
4. Can Gertrude Rainbows live with freshwater shrimp?
Yes. They are generally safe with adult shrimp such as Amano and Neocaridina shrimp, although very small shrimp fry may occasionally be eaten.
5. Does Monster Aquarium Canada ship Gertrude Rainbows across Canada?
Yes. Monster Aquarium Canada offers professional live fish shipping across Canada, helping ensure your Gertrude Rainbows arrive healthy and ready for your aquarium.
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