L128 Blue Phantom Pleco 4–5″ for Sale in Canada | Buy L128 Pleco

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**L128 Blue Phantom Pleco (Hemiancistrus sp. L128) 4–5″ for Sale in Canada**

The L128 Blue Phantom Pleco is a highly sought-after South American L-number pleco admired for its deep blue-gray coloration, dark body, and subtle lighter markings. At 4–5 inches, this specimen is already at an attractive juvenile-to-subadult size and makes an excellent choice for aquarists and collectors searching for a distinctive specialty pleco.

The L128 is associated with the Hemiancistrus group and is a fascinating bottom-dwelling catfish that appreciates clean, warm, highly oxygenated water, strong circulation, caves, rocks, and driftwood.

Its understated blue coloration can become particularly attractive under suitable aquarium lighting and against dark natural décor.

Monster Aquarium Canada offers the L128 Blue Phantom Pleco 4–5″ for Canadian aquarists looking for rare L-number plecos and specialty freshwater fish.

Why Choose an L128 Blue Phantom Pleco?

A Beautiful Blue-Toned L-Number Pleco

The Blue Phantom Pleco is prized for its unusual coloration and collector appeal.

Key Features

L-number: L128
Scientific identification: Hemiancistrus sp. L128
Common name: Blue Phantom Pleco
Available size: 4–5 inches
Blue-gray to dark coloration
Subtle contrasting markings
Armored body
Sucker mouth
South American freshwater species
Cave-dwelling behaviour
Generally peaceful temperament
Highly desirable L-number pleco

Coloration and pattern can vary between individual specimens and aquarium conditions.

L128 Blue Phantom Pleco 4–5″ Size

A Great Collector Size

The 4–5 inch size is an excellent stage for adding an L128 to an established aquarium.

At this size, the fish is large enough to make an impressive display while still having significant room for continued growth.

Think Long-Term

When purchasing an L128, consider its eventual adult size and provide sufficient:

Bottom territory
Hiding places
Filtration
Oxygenation
Water movement
Feeding opportunities

Aquarium Size and Setup

Give Your L128 Plenty of Bottom Space

A 75-gallon aquarium or larger is a good long-term target for an adult Blue Phantom Pleco, particularly in a community aquarium.

A larger aquarium is recommended when keeping several bottom-dwelling fish or multiple plecos.

Recommended Aquarium Features

Mature biological filtration
Strong water circulation
High oxygenation
Aquarium-safe driftwood
Smooth rocks
Pleco caves
Rock crevices
Shaded areas
Open bottom territory

Provide Caves and Shelters

The L128 appreciates secure hiding areas where it can retreat during daylight hours.

If keeping multiple plecos, provide several caves and separate territories to minimize competition.

Water Parameters

Basic L128 Blue Phantom Pleco Care

Scientific name: Hemiancistrus sp. L128
Common name: L128 Blue Phantom Pleco
L-number: L128
Current size: 4–5 inches
Potential adult size: Approximately 7–9 inches (18–23 cm)
Origin: South America
Temperature: Approximately 26–30°C (79–86°F)
pH: Approximately 6.0–7.5
Water hardness: Soft to moderately hard
Care level: Moderate to Advanced
Temperament: Generally peaceful
Diet: Omnivorous
Swimming level: Bottom
Activity: Primarily nocturnal or crepuscular

Stable water quality and high oxygenation are particularly important for maintaining a healthy L-number pleco.

What Does an L128 Blue Phantom Pleco Eat?

Provide a Varied Diet

The L128 benefits from a varied diet containing quality sinking foods along with plant-based foods.

Recommended Foods

High-quality sinking pleco pellets
Spirulina wafers
Algae wafers
Vegetable-based sinking foods
Blanched zucchini
Cucumber
Green beans
Specialized pleco foods
Quality gel foods
Occasional protein-rich foods

Feeding Tip

Offer food after the aquarium lights have dimmed. This suits the L128’s natural activity pattern and helps prevent faster tank mates from consuming all the food.

Avoid relying exclusively on algae growing naturally in the aquarium.

Behaviour and Temperament

A Peaceful Bottom-Dwelling Fish

The L128 is generally peaceful toward compatible aquarium inhabitants.

During daylight, it may remain hidden beneath driftwood, rocks, or inside caves. As lighting decreases, it typically becomes more active.

You may observe your Blue Phantom Pleco:

Exploring caves
Grazing aquarium surfaces
Searching for food
Moving across rocks
Investigating driftwood
Patrolling its preferred territory

Some territorial behaviour can occur between individuals, particularly when hiding places are limited.

Compatible Tank Mates

Excellent for a Carefully Planned Community Aquarium

The L128 can be kept with peaceful tropical fish that tolerate similar warm-water conditions.

Potential tank mates include:

Tetras
Rasboras
Corydoras
Peaceful dwarf cichlids
Silver Dollars
Compatible South American fish
Peaceful larger catfish

Avoid

Aggressive predators
Highly territorial cichlids
Persistent fin-nipping fish
Excessively territorial bottom dwellers
Too many plecos competing for caves

Always consider the adult size and behaviour of every tank mate.

L128 Blue Phantom Pleco in a Natural Aquarium

Create a Rocky, Wood-Rich Habitat

A natural-style aquarium can bring out the L128’s attractive dark blue coloration.

Consider adding:

Aquarium-safe driftwood
Smooth river rocks
Pleco caves
Rock crevices
Shaded areas
Hardy aquatic plants
Strong circulation
Open bottom territory

Dark substrate and natural rockwork can provide an excellent background for the Blue Phantom’s coloration.

Breeding L128 Blue Phantom Plecos

A Specialist Cave-Spawning Project

Breeding L-number plecos can be a rewarding project for experienced aquarists.

A suitable breeding environment should include:

Mature compatible adults
Appropriately sized caves
Excellent water quality
Strong oxygenation
Stable warm temperatures
Nutritious food
Good circulation
Minimal disturbance

Providing several caves allows fish to establish territories and select preferred spawning sites.

Why Buy an L128 Blue Phantom Pleco from Monster Aquarium Canada?

A Rare L-Number Pleco for Canadian Aquarists

Monster Aquarium Canada specializes in rare freshwater fish, L-number plecos, unusual tropical fish, monster fish, aquarium foods, medications, and specialist aquarium supplies.

The L128 Blue Phantom Pleco 4–5″ is an excellent choice for aquarists who want a distinctive L-number catfish with attractive blue-gray coloration and fascinating nocturnal behaviour.

A Standout Collector Fish

Its combination of blue-toned coloration, manageable size, peaceful nature, armored body, and L-number collector appeal makes the L128 a fantastic addition to a serious freshwater aquarium.

Frequently Asked Questions

1. What is an L128 Blue Phantom Pleco?

The L128 Blue Phantom Pleco is commonly traded as Hemiancistrus sp. L128 and is a South American L-number pleco known for its dark blue-gray coloration.