POLAR BLUE CONVICT (Amatitlania nigrofasciata) – For Sale in Canada

The Polar Blue Convict (Amatitlania nigrofasciata) is a beautiful and highly popular freshwater cichlid known for its compact size, electric blue coloration, bold personality, and fascinating breeding behavior. It combines the hardy nature of the Convict Cichlid with an attractive blue-toned appearance, making it a great choice for aquarists who want a colorful cichlid without needing an enormous aquarium.

Monster Aquarium Canada offers freshwater aquarium livestock for Canadian hobbyists and cichlid enthusiasts. Fish size, coloration, and availability may vary depending on current inventory.

Polar Blue Convict Species Overview

Scientific Name

Amatitlania nigrofasciata

Common Names

• Polar Blue Convict
• Polar Blue Cichlid
• Blue Convict Cichlid
• Convict Cichlid
• Zebra Cichlid
• Blue Convict

Taxonomy note: The name “Polar Blue Convict” is commonly used in the aquarium trade for a selectively bred blue-colored form associated with the Convict Cichlid complex. The underlying species name commonly used in the trade is Amatitlania nigrofasciata.

Origin

The Convict Cichlid originates from Central America, where it occurs in freshwater environments across parts of Guatemala, Honduras, El Salvador, Nicaragua, Costa Rica, and surrounding regions.

Wild Convict Cichlids inhabit streams, rivers, lakes, and areas containing rocks, roots, submerged wood, and natural shelters.

Appearance and Coloration

The Polar Blue Convict is particularly attractive because of its blue coloration.

Depending on genetics, age, sex, and condition, specimens may display:

• Blue to electric-blue body coloration
• Blue-gray base coloration
• Iridescent blue highlights
• Dark markings or barring
• Orange or reddish coloration in some individuals
• Blue-tinted fins
• Compact, muscular body shape

Coloration can become more pronounced as the fish matures.

Aquarium Setup

Recommended Tank Size

For a single Polar Blue Convict, a 30-gallon aquarium or larger is a good starting point.

For a pair, a 40-gallon or larger aquarium is preferable, particularly when breeding.

If keeping multiple cichlids together, substantially more space may be required because territorial behavior can become intense.

Substrate

Suitable substrates include:

• Fine sand
• Smooth gravel
• Rounded aquarium substrate

Convict Cichlids are enthusiastic diggers, especially when establishing breeding territories.

Decorations

Provide plenty of sturdy structure:

• Rocks
• Caves
• Driftwood
• Ceramic breeding shelters
• Aquarium-safe decorations

Caves and crevices are especially useful because these fish naturally use sheltered areas for territory and spawning.

Water Parameters

Maintain stable, clean freshwater:

• Temperature: approximately 24–28°C
• pH: approximately 6.5–8.0
• Hardness: soft to moderately hard
• Ammonia: 0 ppm
• Nitrite: 0 ppm
• Nitrate: preferably kept low

Polar Blue Convicts are generally hardy, but excellent water quality remains essential for long-term health.

Feeding the Polar Blue Convict

Polar Blue Convicts are omnivorous and are generally enthusiastic feeders.

Recommended Foods

Offer a varied diet including:

• Quality cichlid pellets
• Small cichlid sticks
• High-quality flakes
• Spirulina-based foods
• Frozen brine shrimp
• Mysis shrimp
• Bloodworms
• Daphnia
• Other appropriately sized frozen foods

A varied diet supports healthy growth, coloration, and overall condition.

Avoid excessive feeding, as leftover food can quickly increase aquarium waste.

Behavior and Temperament

The Polar Blue Convict may be small compared with larger cichlids, but it has a strong territorial personality.

It can become particularly defensive when:

• Establishing a territory
• Protecting a cave
• Feeding
• Pairing
• Breeding
• Protecting eggs or fry

This species should not be judged solely by its relatively small adult size. A breeding pair can become surprisingly aggressive toward other aquarium inhabitants.

Tank Mates

Potential tank mates should be appropriately sized and able to tolerate territorial behavior.

In a sufficiently large aquarium, possible companions can include:

• Other robust Central American cichlids
• Larger Plecos
• Robust livebearers in carefully planned setups
• Other appropriately sized semi-aggressive fish

Avoid:

• Very small community fish
• Extremely peaceful species
• Slow-moving fish
• Fish that cannot defend themselves

Individual temperament varies, so compatibility should always be monitored.

Plants and Aquascaping

Polar Blue Convicts are notorious diggers.

They may:

• Uproot plants
• Move substrate
• Rearrange decorations
• Dig underneath rocks
• Create spawning pits

For planted aquariums, use hardy plants attached to driftwood or rocks.

An aquascape consisting of sand, rocks, caves, driftwood, and open swimming areas is often a practical choice.

Growth and Color Development

Young Polar Blue Convicts gradually develop their adult coloration and body shape.

As they mature, you may notice:

• Deeper body proportions
• Stronger blue coloration
• More prominent markings
• Larger fins
• Increased territorial behavior

Genetics, nutrition, water quality, age, and social conditions all influence appearance.

Filtration and Aquarium Maintenance

Despite their relatively small size, Convict Cichlids can produce a surprising amount of waste, especially when breeding.

Recommended filtration includes:

• Canister filters
• HOB filters
• Sponge filters
• Strong biological filtration

Regular partial water changes, substrate cleaning, and removal of uneaten food are important.

Maintain stable biological filtration rather than performing unnecessary complete filter-media replacements.

Breeding Polar Blue Convicts

Breeding is one of the most fascinating aspects of Convict Cichlid behavior.

Once a compatible pair forms, they may select:

• A cave
• Ceramic breeding tube
• Rock cavity
• Driftwood structure
• Sheltered surface

The female may lay eggs inside the selected spawning site while both parents defend the area.

Breeding Behavior

During breeding, expect significantly increased territorial behavior.

Parents can aggressively defend:

• Eggs
• Fry
• Spawning cave
• Immediate territory

If breeding is not your goal, avoid providing an obvious isolated spawning cave when keeping a pair.

Why Choose a Polar Blue Convict?

The Polar Blue Convict is an excellent choice for aquarists looking for:

• Attractive blue coloration
• A compact cichlid
• Hardy freshwater fish
• Strong personality
• Interesting territorial behavior
• Fascinating parental care
• A relatively manageable aquarium requirement
• An active and interactive fish

Its combination of color, personality, hardiness, and breeding behavior makes it a popular choice for both newer cichlid keepers and experienced hobbyists.

Buy Polar Blue Convict in Canada

Looking to buy a Polar Blue Convict in Canada?

Monster Aquarium Canada provides freshwater aquarium livestock for Canadian fish keepers, cichlid enthusiasts, and collectors.

The Polar Blue Convict is a great option for aquarists who want a colorful Central American cichlid while working with a smaller aquarium than would be required for large species such as Red Terror or Red Headed Vieja.

Before purchasing, make sure your aquarium has:

• Adequate swimming space
• Secure decorations
• Suitable filtration
• Appropriate water quality
• Compatible tank mates
• A plan for potential breeding aggression

Livestock availability, sizes, and inventory can change, so confirm current availability before ordering.

Frequently Asked Questions

1. How big does a Polar Blue Convict get?

Polar Blue Convicts are relatively compact cichlids. Adult size is commonly around 4–6 inches, with males generally becoming larger than females.

2. Is the Polar Blue Convict aggressive?

Yes. Although small, Convict Cichlids are territorial and can be aggressive, especially when breeding.

3. What size tank does a Polar Blue Convict need?

A 30-gallon aquarium or larger is a good starting point for one fish. A pair is better suited to approximately 40 gallons or larger, with more space recommended for community setups.

4. What does a Polar Blue Convict eat?

They accept quality cichlid pellets and flakes along with frozen foods such as brine shrimp, mysis shrimp, bloodworms, and daphnia.

5. Can I buy Polar Blue Convict in Canada?

Availability varies with current livestock. Check Monster Aquarium Canada for current availability, specimen sizes, and Canadian shipping information.