RED OSCAR (Astronotus ocellatus) 2″ – For Sale in Canada

The Red Oscar (Astronotus ocellatus) 2″ is a stunning juvenile cichlid that develops into one of the most recognizable and interactive freshwater aquarium fish. Known for its vibrant red-orange coloration, dark body, intelligent behavior, and strong personality, the Oscar is a favorite among cichlid enthusiasts and monster fish keepers.

At approximately 2 inches, this juvenile Red Oscar is an exciting size to raise and watch develop. With proper nutrition, excellent water quality, and adequate aquarium space, it can grow into a large, impressive centerpiece fish.

Monster Aquarium Canada offers freshwater aquarium livestock for Canadian hobbyists, with availability and specimen sizes subject to change.

Red Oscar Species Overview

Scientific Name

Astronotus ocellatus

Common Names

• Red Oscar
• Red Oscar Cichlid
• Oscar Fish
• Oscar Cichlid
• Tiger Oscar
• Velvet Cichlid

Origin

The Oscar is native to South America, particularly freshwater systems within the Amazon and Orinoco regions and surrounding watersheds.

Wild Oscars are commonly found in relatively slow-moving waters containing submerged wood, roots, rocks, vegetation, and other structures that provide shelter.

Red Oscar Appearance

The Red Oscar is valued for its combination of size, coloration, and personality.

As this 2-inch juvenile matures, it can develop:

• Red-orange coloration
• Dark black or charcoal body areas
• Orange markings around the body and fins
• Iridescent blue-green highlights
• Distinctive eye-like markings near the caudal area
• A deep, powerful body shape
• Large dorsal and anal fins

Color intensity varies between individual fish and can be influenced by genetics, diet, age, water quality, and stress.

Aquarium Setup

Recommended Tank Size

Although a 2-inch Oscar is small, it is important to plan for its adult size from the beginning.

For one adult Oscar, a 75-gallon aquarium or larger is generally recommended. A 90–125 gallon aquarium provides additional swimming space and can be preferable for a large adult.

If keeping multiple Oscars or compatible large fish, a substantially larger aquarium may be required.

Substrate

Good substrate choices include:

• Fine sand
• Smooth gravel
• Rounded aquarium substrate

Oscars are active fish and may move substrate while exploring, so avoid sharp materials.

Decorations

Use sturdy aquarium décor such as:

• Driftwood
• Large rocks
• Caves
• Aquarium-safe structures
• Heavy decorations

Secure decorations properly because adult Oscars are powerful fish capable of moving or rearranging aquarium objects.

Water Parameters

Maintain stable, clean freshwater conditions:

• Temperature: approximately 24–28°C
• pH: approximately 6.0–8.0
• Hardness: soft to moderately hard
• Ammonia: 0 ppm
• Nitrite: 0 ppm
• Nitrate: preferably kept low

Consistency and excellent water quality are more important than trying to maintain one exact pH value.

Feeding a Red Oscar

Oscars are omnivorous and benefit from a varied, nutritious diet.

Recommended Foods

A good diet can include:

• High-quality Oscar or cichlid pellets
• Cichlid sticks
• Frozen shrimp
• Mysis shrimp
• Krill
• Earthworms
• Bloodworms as an occasional food
• Other appropriately sized frozen foods

For a 2-inch juvenile, choose appropriately sized food so the fish can comfortably consume it.

Avoid overfeeding. Oscars are enthusiastic eaters, and excess food can quickly contribute to poor water quality.

Red Oscar Behavior and Temperament

One of the reasons Oscars are so popular is their intelligence and personality.

They often learn to recognize their keeper and may become highly interactive during feeding.

However, an Oscar is not a small community fish. Adults can become territorial and may display aggression toward unsuitable tank mates.

Typical behaviors include:

• Following movement outside the aquarium
• Begging for food
• Rearranging decorations
• Exploring the aquarium
• Establishing preferred areas
• Chasing or displaying toward other fish

Tank Mates

Oscars should be housed with appropriately sized fish that can tolerate their personality and eventual size.

Potential tank mates in a sufficiently large aquarium can include other robust South American fish and large, compatible cichlids.

Examples may include:

• Large Plecos
• Silver Dollars
• Large peaceful-to-moderate cichlids
• Robust South American catfish
• Other appropriately sized Oscar-compatible species

Avoid:

• Tiny tetras
• Small livebearers
• Shrimp
• Very small community fish
• Extremely peaceful fish that cannot tolerate an Oscar’s activity

Compatibility always depends on individual temperament and aquarium size.

Growth and Development

A 2-inch Red Oscar has considerable growth ahead.

With excellent care, young Oscars can grow relatively quickly. Their body becomes deeper and thicker as they mature, while their red-orange coloration and facial markings become more pronounced.

Growth depends on:

• Genetics
• Nutrition
• Water quality
• Aquarium size
• Filtration
• Feeding schedule
• Overall health

Avoid attempting to force rapid growth through excessive feeding. Healthy, consistent growth is preferable.

Plants and Aquascaping

Oscars are not always suitable for delicate planted aquariums.

They may:

• Dig
• Uproot plants
• Move decorations
• Disturb substrate

If you want plants, consider hardy species attached securely to driftwood or rocks rather than delicate rooted plants.

A natural-looking Oscar aquarium can be created using large driftwood pieces, rocks, open swimming areas, and sturdy decorations.

Filtration and Aquarium Maintenance

Oscars produce considerable waste, making powerful filtration essential.

Recommended options include:

• Large canister filters
• Sump filtration
• Oversized HOB filters
• High-capacity biological filtration

Mechanical filtration should efficiently remove solid waste, while biological filtration helps process ammonia and nitrite.

Regular partial water changes are essential. Vacuum the substrate, remove uneaten food, and maintain filter media without unnecessarily destroying beneficial bacteria.

Red Oscar Breeding

Oscars can breed successfully in captivity once mature.

A compatible pair may become territorial and select a relatively flat surface for spawning.

Breeding aquariums should provide:

• Flat rocks
• Open areas
• Clean water
• Stable temperature
• Adequate territory

Parents may protect eggs and fry aggressively, so breeding pairs may require additional aquarium space and careful management.

Why Choose a 2″ Red Oscar?

A 2-inch Red Oscar is an excellent choice for aquarists who want to watch a fish develop from a juvenile into a large, colorful adult.

Key Benefits

• Beautiful red-orange coloration
• Highly interactive personality
• Intelligent behavior
• Impressive adult size
• Strong feeding response
• Excellent centerpiece fish
• Interesting social and breeding behavior
• Popular choice for dedicated cichlid aquariums

The Oscar is particularly appealing to hobbyists who want a fish that feels more like a pet with a personality than a traditional community aquarium fish.

Buy Red Oscar 2″ in Canada

Looking to buy a 2-inch Red Oscar in Canada?

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

The 2-inch Red Oscar is a great size for aquarists who want to raise a juvenile and observe its coloration, body shape, and personality develop over time.

Before purchasing, make sure you have an appropriately sized aquarium or a plan to upgrade as the fish grows.

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

Frequently Asked Questions

1. How big does a Red Oscar get?

Oscars can become large cichlids, with many adults reaching approximately 10–14 inches, although individual size varies according to genetics, sex, nutrition, and husbandry.

2. What size tank does a 2-inch Oscar need?

The juvenile can temporarily be housed in a smaller aquarium, but it is best to plan for an adult setup of 75 gallons or larger for one Oscar.

3. How fast does a Red Oscar grow?

Young Oscars can grow quickly under good conditions. Growth varies considerably, so focus on quality nutrition, clean water, and adequate space rather than trying to maximize growth speed.

4. Are Red Oscars aggressive?

Oscars are generally less aggressive than highly territorial species such as Red Terrors, but they can become territorial and may attack or eat smaller fish.

5. Can I buy a 2-inch Red Oscar in Canada?

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