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AGGRESSIVE AGGRESSIONmid LAYERFreshwater

Oscar Cichlid

ScientificAstronotus ocellatus

Oscar Cichlid
SPECIMEN SERIALAQ-SPC-OSCAR-CICHLIDVERIFIED METRIC SHEET

Key Care Metrics

Min Tank Volume
75GGallons / 284 LitersCheck Stocking Capacity →
Temp Envelope
74°-80°F23° - 27° Celsius
60°F90°F
Calculate Heater Wattage →
Acidity Envelope
6.0-7.5pH Scale Boundary
pH 5.0pH 9.0
Adult Specimen Size
12.0"Inches / 30.5 cm

Comprehensive Oscar Cichlid Care Guide & Tank Setup

Providing proper Oscar Cichlid care begins with establishing an environment that mimics their natural freshwater habitat. To guarantee optimal health, the minimum Oscar Cichlid tank size should be at least 75 gallons. While some sources suggest smaller volumes, a larger tank provides water chemistry buffering and crucial swimming space.

Maintaining a stable water environment is critical. The ideal Oscar Cichlid temperature envelope ranges from 74°F to 80°F (approx. 23°C to 27°C) with an acidity level strictly bounded between 6.0 and 7.5 pH. Fluctuations outside of these parameters can compromise their immune system.

Fish Food & Nutrition: Providing high-quality fish food for Oscar Cichlid is vital to preserve their vivid colors and energy levels. Offer a varied diet consisting of high-protein tropical pellets or flakes, supplemented with live or frozen treats like bloodworms, brine shrimp, and daphnia.

Husbandry & Care Profile: Provide a massive tank with powerful filtration. They are heavy waste producers that place immense strain on biological filtration due to their messy eating habits.

⏳ Oscar Cichlid Size & Lifespan Expectations

When planning your aquarium layout, understanding the expected Oscar Cichlid size is critical. The average Oscar Cichlid max size when fully grown reaches approximately 12.0 inches (approx. 30.5 cm). In some conditions, a particularly healthy, large specimen might grow slightly larger.

How long do they live? The typical Oscar Cichlid lifespan averages around several years. Specifically, These intelligent cichlids typically live for ten to fifteen years. Their large size and personality make them more like aquatic pets than simple fish. Maintaining excellent water parameters, high-quality nutrition, and low stress will help maximize their longevity.

🧬 Oscar Cichlid Male vs Female Differences

Understanding sexual dimorphism is key for breeding projects and managing cohabitation. Comparing a Oscar Cichlid male vs female or female vs male Oscar Cichlid reveals clear biological and cosmetic differences.

There are no visible external differences between genders. They are monomorphic and can only be sexed through venting or observing them spawn.

Cohabitation & Breeding Notes: Can you put a female and male specimen together? Depending on their species behavior, housing female and male Oscar Cichlid specimens in the same tank requires careful setup. For highly territorial species, keep them separated. For peaceful community fish, maintain a breeding ratio of multiple females to each male to distribute attention and reduce stress.

🐠 Compatible Oscar Cichlid Tank Mates

Finding the right Oscar Cichlid tank mates is key to maintaining a peaceful community. Can this species live with other fish? The answer depends on their aggression rating (aggressive).

Keep them individually or in bonded pairs in massive tanks. They are highly territorial and aggressive, and a single Oscar is usually the best approach for most setups.

When choosing companion fish, ensure they share similar temperature and pH requirements. Avoid housing them with slow-moving long-finned species if they are known fin-nippers, or with very large predatory fish that might view them as food. For a full compatibility breakdown, check the custom cross-checks and ideal matches listed on this page.

🎨 Popular Oscar Cichlid Morphs & Varieties

In the aquarium trade, the Oscar Cichlid has been bred selectively to showcase a variety of eye-catching color morphs, tail shapes, and patterns. Some of the most notable strains and varieties include:

Standard Oscar CichlidWild-type Oscar CichlidSelectively bred Oscar Cichlid varieties

From deep blue and red shades to intricate koi, marble, or albino strains, choosing the right morph adds incredible visual character to your aquarium.

🏷️ Cost & Buying Guide

Are you looking to find a healthy Oscar Cichlid for sale or ready to buy a Oscar Cichlid online? Sourcing your fish from high-quality breeders is crucial to starting with healthy specimens.

Very inexpensive as juveniles, but they grow fast and require expensive tank upgrades quickly. The average price of a Oscar Cichlid varies depending on the specific color morph, fins, and strain rarity. Common varieties are widely available and can easily be purchased for under $30. Rare import show-grade specimens can cost significantly more.

When searching for a supplier nearby, check their reviews and verify that their tanks are clean and free of diseases. Healthy specimens should be alert, active, and showing bright coloration with no signs of lethargy or clamped fins. Avoid purchasing "used" or neglected setups without sanitizing them thoroughly.

✨ Unique Oscar Cichlid Name Ideas

Choosing a unique name for your new companion is one of the best parts of the hobby. Here are 5 unique, thematic Oscar Cichlid names based on their biological traits:

  • 🐟Tyson
  • 🐟Spike
  • 🐟Hunter
  • 🐟Rebel
  • 🐟Thor

📚 Media, Art & Aquarium Ornaments

Thanks to their popularity, Oscar Cichlid are frequently referenced in books, movies & TV shows, and cast into art sculptures or figurines. In the hobby, they are a beloved subject for custom aquarium decor, photo prints, and artificial ornaments.

If you want to purchase species-specific aquarium decor for a Oscar Cichlid, prioritize live plants, smooth river rocks, and clean driftwood. If you buy artificial resin ornaments, verify they have no sharp edges or narrow gaps that could trap or injure active fish.

❓ Frequently Asked Questions

How long do Oscar Cichlid live?

These intelligent cichlids typically live for ten to fifteen years. Their large size and personality make them more like aquatic pets than simple fish.

What size tank does a Oscar Cichlid need?

A Oscar Cichlid requires a minimum tank size of 75 gallons (approx. 284 liters) to ensure proper swimming space and stable water parameters.

Can you put two Oscar Cichlid together?

Keep them individually or in bonded pairs in massive tanks. They are highly territorial and aggressive, and a single Oscar is usually the best approach for most setups.

Can a Oscar Cichlid live with other fish?

Yes, depending on their aggression level. The Oscar Cichlid has a aggressive aggression level. In general, peaceful tank mates that share the same temperature (74°F to 80°F) and pH (6.0 to 7.5) requirements make the best cohabitants.

Depth Profile

Strata Depth Profile

mid Layer
Top Zone
0-10" Depth
Mid Zone
Active
Bottom Zone
20"+ Depth

Specimen biology dictates water column placement. The Oscar Cichlid primarily patrols the mid zone, optimizing its ecological role and feeding strategies.

Ecosystem Bioload Footprint

5.0xWaste Factor

Larger values represent higher bio-waste output, requiring higher filtration volume.

Ideal Cohabitants0 verified

No direct compatible cohabitants found.

Fish to Avoid Pairing With Oscar Cichlid49 conflicts

Neon Tetra

Paracheirodon innesi

Conflict Report →
Oscars grow extremely large and are highly predatory. Small schooling species like Neon Tetras will be treated as live food immediately.
Guppy

Poecilia reticulata

Conflict Report →
Oscars will quickly eat small, surface-dwelling guppies. They are completely incompatible.
High predation hazard. The size ratio between Oscar Cichlid (12") and Male Betta Fish (2.5") exceeds 4:1, and the larger species has a aggressive temperament. The smaller species will likely be hunted or eaten.
Angelfish

Pterophyllum scalare

Conflict Report →
Aggression incompatibility. Oscar Cichlid is an aggressive/territorial species. Peaceful or community fish like Angelfish cannot be housed with highly territorial fish safely.
High predation hazard. The size ratio between Oscar Cichlid (12") and Cherry Shrimp (1") exceeds 4:1, and the larger species has a aggressive temperament. The smaller species will likely be hunted or eaten.
Aggression incompatibility. Oscar Cichlid is an aggressive/territorial species. Peaceful or community fish like Bristlenose Pleco cannot be housed with highly territorial fish safely.
Aggression incompatibility. Oscar Cichlid is an aggressive/territorial species. Peaceful or community fish like Fancy Goldfish cannot be housed with highly territorial fish safely.
High predation hazard. The size ratio between Oscar Cichlid (12") and Zebra Danio (2") exceeds 4:1, and the larger species has a aggressive temperament. The smaller species will likely be hunted or eaten.
Harlequin Rasbora

Trigonostigma heteromorpha

Conflict Report →
High predation hazard. The size ratio between Oscar Cichlid (12") and Harlequin Rasbora (1.75") exceeds 4:1, and the larger species has a aggressive temperament. The smaller species will likely be hunted or eaten.
Platy

Xiphophorus maculatus

Conflict Report →
High predation hazard. The size ratio between Oscar Cichlid (12") and Platy (2.5") exceeds 4:1, and the larger species has a aggressive temperament. The smaller species will likely be hunted or eaten.
Molly

Poecilia sphenops

Conflict Report →
Aggression incompatibility. Oscar Cichlid is an aggressive/territorial species. Peaceful or community fish like Molly cannot be housed with highly territorial fish safely.
Swordtail

Xiphophorus hellerii

Conflict Report →
Aggression incompatibility. Oscar Cichlid is an aggressive/territorial species. Peaceful or community fish like Swordtail cannot be housed with highly territorial fish safely.
High predation hazard. The size ratio between Oscar Cichlid (12") and Corydoras Catfish (2.5") exceeds 4:1, and the larger species has a aggressive temperament. The smaller species will likely be hunted or eaten.
Aggression incompatibility. Oscar Cichlid is an aggressive/territorial species. Peaceful or community fish like Kuhli Loach cannot be housed with highly territorial fish safely.
Pea Puffer

Carinotetraodon travancoricus

Conflict Report →
High predation hazard. The size ratio between Oscar Cichlid (12") and Pea Puffer (1") exceeds 4:1, and the larger species has a aggressive temperament. The smaller species will likely be hunted or eaten.
High predation hazard. The size ratio between Oscar Cichlid (12") and Otocinclus Catfish (1.5") exceeds 4:1, and the larger species has a aggressive temperament. The smaller species will likely be hunted or eaten.
Ghost Shrimp

Palaemonetes paludosus

Conflict Report →
High predation hazard. The size ratio between Oscar Cichlid (12") and Ghost Shrimp (1.5") exceeds 4:1, and the larger species has a aggressive temperament. The smaller species will likely be hunted or eaten.
Amano Shrimp

Caridina multidentata

Conflict Report →
High predation hazard. The size ratio between Oscar Cichlid (12") and Amano Shrimp (2") exceeds 4:1, and the larger species has a aggressive temperament. The smaller species will likely be hunted or eaten.
High predation hazard. The size ratio between Oscar Cichlid (12") and Mystery Snail (2") exceeds 4:1, and the larger species has a aggressive temperament. The smaller species will likely be hunted or eaten.
High predation hazard. The size ratio between Oscar Cichlid (12") and Nerite Snail (1") exceeds 4:1, and the larger species has a aggressive temperament. The smaller species will likely be hunted or eaten.
Aggression incompatibility. Oscar Cichlid is an aggressive/territorial species. Peaceful or community fish like Tiger Barb cannot be housed with highly territorial fish safely.
High predation hazard. The size ratio between Oscar Cichlid (12") and Cherry Barb (2") exceeds 4:1, and the larger species has a aggressive temperament. The smaller species will likely be hunted or eaten.
Aggression incompatibility. Oscar Cichlid is an aggressive/territorial species. Peaceful or community fish like Dwarf Gourami cannot be housed with highly territorial fish safely.
High predation hazard. The size ratio between Oscar Cichlid (12") and Honey Gourami (2") exceeds 4:1, and the larger species has a aggressive temperament. The smaller species will likely be hunted or eaten.
Aggression incompatibility. Oscar Cichlid is an aggressive/territorial species. Peaceful or community fish like Pearl Gourami cannot be housed with highly territorial fish safely.
High predation hazard. The size ratio between Oscar Cichlid (12") and Celestial Pearl Danio (1") exceeds 4:1, and the larger species has a aggressive temperament. The smaller species will likely be hunted or eaten.
High predation hazard. The size ratio between Oscar Cichlid (12") and Chili Rasbora (0.75") exceeds 4:1, and the larger species has a aggressive temperament. The smaller species will likely be hunted or eaten.
Water temperature envelopes clash. White Cloud Mountain Minnow requires 60-72°F, while Oscar Cichlid requires 74-80°F. Coldwater/coolwater and tropical species cannot share the same environment.
Clown Loach

Chromobotia macracanthus

Conflict Report →
Aggression incompatibility. Oscar Cichlid is an aggressive/territorial species. Peaceful or community fish like Clown Loach cannot be housed with highly territorial fish safely.
Rainbow Shark

Epalzeorhynchos frenatum

Conflict Report →
Aggression incompatibility. Rainbow Shark is an aggressive/territorial species. Peaceful or community fish like Oscar Cichlid cannot be housed with highly territorial fish safely.
Aggression incompatibility. Red Tailed Black Shark is an aggressive/territorial species. Peaceful or community fish like Oscar Cichlid cannot be housed with highly territorial fish safely.
High predation hazard. The size ratio between Oscar Cichlid (12") and Bloodfin Tetra (2") exceeds 4:1, and the larger species has a aggressive temperament. The smaller species will likely be hunted or eaten.
German Blue Ram

Mikrogeophagus ramirezi

Conflict Report →
High predation hazard. The size ratio between Oscar Cichlid (12") and German Blue Ram (2.5") exceeds 4:1, and the larger species has a aggressive temperament. The smaller species will likely be hunted or eaten.
Water acidity (pH) parameters clash. Electric Yellow Cichlid prefers a pH of 7.8-8.6, while Oscar Cichlid requires a pH of 6-7.5. There is no overlapping safe pH range.
Discus

Symphysodon aequifasciatus

Conflict Report →
Water temperature envelopes clash. Discus requires 82-88°F, while Oscar Cichlid requires 74-80°F. Coldwater/coolwater and tropical species cannot share the same environment.
Aggression incompatibility. Oscar Cichlid is an aggressive/territorial species. Peaceful or community fish like Siamese Algae Eater cannot be housed with highly territorial fish safely.
High predation hazard. The size ratio between Oscar Cichlid (12") and Blue Platy Fish (2.5") exceeds 4:1, and the larger species has a aggressive temperament. The smaller species will likely be hunted or eaten.
Cardinal Tetra

Paracheirodon axelrodi

Conflict Report →
High predation hazard. The size ratio between Oscar Cichlid (12") and Cardinal Tetra (2") exceeds 4:1, and the larger species has a aggressive temperament. The smaller species will likely be hunted or eaten.
Rummynose Tetra

Hemigrammus rhodostomus

Conflict Report →
High predation hazard. The size ratio between Oscar Cichlid (12") and Rummynose Tetra (2") exceeds 4:1, and the larger species has a aggressive temperament. The smaller species will likely be hunted or eaten.
Ember Tetra

Hyphessobrycon amandae

Conflict Report →
High predation hazard. The size ratio between Oscar Cichlid (12") and Ember Tetra (0.8") exceeds 4:1, and the larger species has a aggressive temperament. The smaller species will likely be hunted or eaten.
High predation hazard. The size ratio between Oscar Cichlid (12") and Black Skirt Tetra (2.5") exceeds 4:1, and the larger species has a aggressive temperament. The smaller species will likely be hunted or eaten.
High predation hazard. The size ratio between Oscar Cichlid (12") and Serpae Tetra (1.75") exceeds 4:1, and the larger species has a aggressive temperament. The smaller species will likely be hunted or eaten.
Aggression incompatibility. Oscar Cichlid is an aggressive/territorial species. Peaceful or community fish like Croaking Gourami cannot be housed with highly territorial fish safely.
Aggression incompatibility. Oscar Cichlid is an aggressive/territorial species. Peaceful or community fish like Featherfin Synodontis cannot be housed with highly territorial fish safely.
High predation hazard. The size ratio between Oscar Cichlid (12") and African Dwarf Frog (1.5") exceeds 4:1, and the larger species has a aggressive temperament. The smaller species will likely be hunted or eaten.
Knight Goby Fish

Stigmatogobius sadanundio

Conflict Report →
Aggression incompatibility. Oscar Cichlid is an aggressive/territorial species. Peaceful or community fish like Knight Goby Fish cannot be housed with highly territorial fish safely.
High predation hazard. The size ratio between Oscar Cichlid (12") and Assassin Snail (1") exceeds 4:1, and the larger species has a aggressive temperament. The smaller species will likely be hunted or eaten.
Bala Shark

Balantiocheilos melanopterus

Conflict Report →
Aggression incompatibility. Oscar Cichlid is an aggressive/territorial species. Peaceful or community fish like Bala Shark cannot be housed with highly territorial fish safely.
Aggression incompatibility. Oscar Cichlid is an aggressive/territorial species. Peaceful or community fish like Apistogramma Hongsloi cannot be housed with highly territorial fish safely.

Verified Compatibility Profiles for Oscar Cichlid

Systematically explore algorithmic compatibility reports comparing the Oscar Cichlid against other common freshwater species:

Neon TetraParacheirodon innesi
incompatibleCross-Check →
GuppyPoecilia reticulata
incompatibleCross-Check →
Male Betta FishBetta splendens
incompatibleCross-Check →
AngelfishPterophyllum scalare
incompatibleCross-Check →
Cherry ShrimpNeocaridina davidi
incompatibleCross-Check →
Bristlenose PlecoAncistrus cirrhosus
incompatibleCross-Check →
Fancy GoldfishCarassius auratus
incompatibleCross-Check →
Zebra DanioDanio rerio
incompatibleCross-Check →
Harlequin RasboraTrigonostigma heteromorpha
incompatibleCross-Check →
PlatyXiphophorus maculatus
incompatibleCross-Check →
MollyPoecilia sphenops
incompatibleCross-Check →
SwordtailXiphophorus hellerii
incompatibleCross-Check →
Corydoras CatfishCorydoras aeneus
incompatibleCross-Check →
Kuhli LoachPangio semiperfecta
incompatibleCross-Check →
Pea PufferCarinotetraodon travancoricus
incompatibleCross-Check →
Otocinclus CatfishOtocinclus vestitus
incompatibleCross-Check →
Ghost ShrimpPalaemonetes paludosus
incompatibleCross-Check →
Amano ShrimpCaridina multidentata
incompatibleCross-Check →
Mystery SnailPomacea bridgesii
incompatibleCross-Check →
Nerite SnailVittina natalensis
incompatibleCross-Check →
Tiger BarbPuntigrus tetrazona
incompatibleCross-Check →
Cherry BarbPuntius titteya
incompatibleCross-Check →
Dwarf GouramiTrichogaster lalius
incompatibleCross-Check →
Honey GouramiTrichogaster chuna
incompatibleCross-Check →
Pearl GouramiTrichopodus leerii
incompatibleCross-Check →
Celestial Pearl DanioDanio margaritatus
incompatibleCross-Check →
Chili RasboraBoraras brigittae
incompatibleCross-Check →
White Cloud Mountain MinnowTanichthys albonubes
incompatibleCross-Check →
Clown LoachChromobotia macracanthus
incompatibleCross-Check →
Rainbow SharkEpalzeorhynchos frenatum
incompatibleCross-Check →
Red Tailed Black SharkEpalzeorhynchos bicolor
incompatibleCross-Check →
Bloodfin TetraAphyocharax anisitsi
incompatibleCross-Check →
German Blue RamMikrogeophagus ramirezi
incompatibleCross-Check →
Electric Yellow CichlidLabidochromis caeruleus
incompatibleCross-Check →
DiscusSymphysodon aequifasciatus
incompatibleCross-Check →
Siamese Algae EaterCrossocheilus oblongus
incompatibleCross-Check →
Blue Platy FishXiphophorus maculatus
incompatibleCross-Check →
Cardinal TetraParacheirodon axelrodi
incompatibleCross-Check →
Rummynose TetraHemigrammus rhodostomus
incompatibleCross-Check →
Ember TetraHyphessobrycon amandae
incompatibleCross-Check →
Black Skirt TetraGymnocorymbus ternetzi
incompatibleCross-Check →
Serpae TetraHyphessobrycon eques
incompatibleCross-Check →
Croaking GouramiTrichopsis vittata
incompatibleCross-Check →
Featherfin SynodontisSynodontis eupterus
incompatibleCross-Check →
African Dwarf FrogHymenochirus boettgeri
incompatibleCross-Check →
Knight Goby FishStigmatogobius sadanundio
incompatibleCross-Check →
Assassin SnailClea helena
incompatibleCross-Check →
Bala SharkBalantiocheilos melanopterus
incompatibleCross-Check →
Apistogramma HongsloiApistogramma hongsloi
incompatibleCross-Check →